LIVE UPDATES

This is CNBC’s live blog tracking Tuesday’s developments on the war in Ukraine. See below for the latest updates. 

Face-to-face talks between Russian and Ukrainian delegates are continuing in Istanbul today.

Ukrainian officials are hoping to secure a resolution to the humanitarian crisis unfolding in their country, as well as a cease-fire agreement.

Meanwhile, the U.K. has said that Russian troops still pose a “significant threat” to Kyiv, and noted that Moscow is currently reorganizing and resetting its forces.

Ukraine International Airlines extends flight suspension through May 31

Ukraine’s largest airline tells customers that flights will be suspended through at least May 31 as Russia’s attacks on the country continue. Ukraine International Airlines had previously scrapped all flights through April 15.

“Given the difficult situation under martial law, the air carrier draws attention to the possibility of forced delays and feedback complications on the service channels of communication with passengers and counts on understanding,” the carrier said.

The war has closed the airspace over Ukraine. Reciprocal sanctions with Russia have meant longer flights as airlines avoid Russian airspace and vice versa and roiled the aviation market with hundreds of foreign-owned planes stuck in the country.

Leslie Josephs

Ukrainian troops battle Russian forces in Zaporizhzhia region

Members of the Ukrainian Volunteer Corps fight against Russian troops in the southeastern Zaporizhzhia region.

— Reuters

Ukraine opens 3 humanitarian corridors

Three humanitarian corridors have been opened in Ukraine on Tuesday, according to Deputy Prime Minister Iryna Vereshchuk.

The corridors will allow civilians to evacuate from the cities of Melitopol and Mariupol, with two separate routes operating in the latter to allow evacuations via government-run buses or private transport.

It comes after no humanitarian corridors were opened on Monday, with Ukrainian officials saying they feared a Russian attack on evacuation routes was looming.

— Chloe Taylor

3 missiles shot down near Lviv, official says

Maksym Kozytskiy, governor of Ukraine’s Lviv region, said Tuesday that Ukraine’s air defense systems had shot down three missiles over the district of Zolochiv — around 65 kilometers (40 miles) east of the city of Lviv.

Kozytskiy said there was no threat to residents of the Zolochiv district and that no one was hurt in the incident.  

Lviv, a city in western Ukraine, had until recently avoided being the scene of active hostilities, with many Ukrainians settling there after fleeing conflict zones elsewhere in the country. According to Kozytskiy, more than 257,000 Ukrainians have resettled in the Lviv region since the beginning of the war.

— Chloe Taylor

Russia continuing to attack residential areas, Ukrainian officials say

“The Russian enemy continues to insidiously launch missile and bomb strikes, trying to completely destroy the infrastructure and residential areas of Ukrainian cities,” Ukraine’s armed forces said in an update on Tuesday.

“It concentrates on fuel storage, in order to complicate logistics and create conditions for a humanitarian crisis.”

The update accused Moscow’s forces of violating international humanitarian law in “temporarily occupied” settlements in the regions of Kyiv, Zaporizhzhia, Chernihiv, Kherson and Kharkiv. According to the Ukrainian armed forces, Russian troops were continuing to shell residential buildings, and were taking hostages and engaging in looting across Ukraine.

A spokesperson for the Russian government was not immediately available for comment when contacted by CNBC.

Officials said Ukrainian forces had held off several Russian attacks on Monday, noting that Russian forces were continuing their attempt to gain ground from the east, southeast and northeast.

— Chloe Taylor

Roman Abramovich is at Russia-Ukraine talks in Istanbul, Russian state media says

Russian state-controlled news agency RIA has reported that billionaire oligarch Roman Abramovich is in attendance at the talks between Russia and Ukraine in Istanbul.

Abramovich, who has been subjected to Western sanctions since Russia invaded Ukraine, reportedly spoke to Turkish President Recep Tayyip Erdogan ahead of the talks.

— Chloe Taylor

UN nuclear agency working to avert nuclear disaster in Ukraine

Rafael Mariano Grossi, head of U.N. nuclear agency the IAEA, has traveled to Ukraine to meet with senior government officials in a bid “to ensure the safety and security of the country’s nuclear facilities.”

Grossi will hold talks with Ukrainian officials about the delivery of urgent technical assistance, the IAEA said Tuesday, aimed at helping to avert the risk of an accident that could endanger people and the environment.

IAEA experts will be sent to “prioritized facilities,” the organization also said in its statement Tuesday, and the agency would send vital safety and security supplies to Ukraine.

“The military conflict is putting Ukraine’s nuclear power plants and other facilities with radioactive material in unprecedented danger,” Grossi said in a statement. “We must take urgent action to make sure that they can continue to operate safely and securely and reduce the risk of a nuclear accident.”

During his visit to Ukraine, Grossi will visit one of the country’s nuclear power plants, the IAEA said.

Earlier this month, Ukraine’s Zaporizhzhia nuclear power plant — the largest in Europe — caught fire after coming under attack by Russian troops.

— Chloe Taylor

144 children have died in war so far, Ukraine says

Ukraine’s Human Rights Commissioner Liudmyla Denisova said Tuesday that 144 children have died so far in the war.

A further 220 children have been injured in the conflict, Denisova said in a post on the messenger app Telegram.

— Chloe Taylor

Ukraine war could cause a recession in Germany, thinktank says

The German economy will grow by 2.1% in 2022 and 3.2% in 2023, thinktank IMK said in an updated forecast on Tuesday.

But it also said a slight recession is also possible in its 2022 risk scenario, the organization added.

In its previous forecast, IMK had predicted Germany’s economy would grow by 4.5% this year, and had not made any forecasts for next year.

“The war in Ukraine is … making recovery after the corona pandemic considerably more difficult,” researchers said.

The forecast of 2.1% GDP growth this year was what IMK expected in its baseline scenario — but if a “more unfavorable risk scenario with much higher energy prices occurs,” analysts predicted that German GDP could shrink by 0.3% in 2022.

In the risk-on environment, GDP growth could fall to 1.4% in 2023, the forecast added.

In the baseline scenario, German inflation was predicted to hit 6.2% this year — but that figure could rise to 8.2% in the risk scenario, IMK said.

An abrupt interruption of energy supplies from Russia, either due to a German embargo or a Russian supply freeze, would cause a deep recession in Germany this year, IMK also warned. This situation would see German GDP shrink “significantly more than in the risk scenario,” researchers said.

— Chloe Taylor

Russia-Ukraine talks set to begin in Istanbul

A spokesperson for the Turkish Foreign Ministry has told NBC News that talks between Russia and Ukraine will begin at 10:30 a.m. Istanbul time (3:30 a.m. ET). He added that it was possible there may be some delays.

— Chloe Taylor

Japan to ban export of luxury items to Russia

Japan has announced it will ban the export of luxury goods to Russia from April 5.

Goods in the export ban will include luxury cars, cosmetics and art.

— Chloe Taylor

Face-to-face talks to resume in Turkey

Face-to-face talks between Russian and Ukrainian delegates are set to resume in Istanbul today.

Delegations from both countries touched down in Turkey on Monday.

But both sides have suggested officials are not yet close to securing an agreement.

Ukrainian Foreign Minister Dmytro Kuleba said on Ukrainian television yesterday that “nothing is agreed upon unless everything is agreed upon.”

He said the minimum Ukraine was hoping to secure was a solution to the humanitarian crises arising from the war, while the maximum the country’s officials were hoping to achieve was a cease-fire.

“Everything can change at any moment,” he said. “At the moment the principal points do not have solid agreements. There is an exchange of thoughts, positions, creative ideas, but there are no decisions yet. Moreover, agreeing on one point does not mean the agreement as a whole will work in integral format.”

Meanwhile, Russian Foreign Minister Sergey Lavrov said in a televised interview on Monday that the delegations “still don’t have a clear understanding on our main points.”

— Chloe Taylor

Ukraine foreign minister calls for Russian Z symbol to be criminalized

— Chloe Taylor

Russia reorganizing and resetting its forces, UK says

Ukrainian forces are continuing to carry out localized counterattacks to Kyiv’s northwest, the U.K. Ministry of Defense said Tuesday.

“These attacks have had some success and the Russians have been pushed back from a number of positions,” the ministry said in an intelligence update. “However, Russia still poses a significant threat to the city through their strike capability.”

The ministry added that the besieged port city of Mariupol remains under Ukrainian control, despite continuous Russian shelling.

“Elsewhere, Russian Forces are maintaining blocking positions while attempting to reorganize and reset their forces,” British officials said.

— Chloe Taylor

Read CNBC’s previous live coverage here:

You can read Monday’s live coverage on the war in Ukraine here:

Ukraine suspends evacuations amid safety fears; Russia, Ukraine prepare for face-to-face talks

UN agency estimates nearly 3,000 civilians have been injured or killed

Russia’s invasion of Ukraine has exacted a heavy toll with a total 2,975 civilian casualties recorded since the conflict began more than a month ago, according to the United Nations High Commissioner for Human Rights.

Among those 1,151 were killed, including 103 children, between Feb. 24 and March 27, the UN agency said in its Monday update.

The agency said most of the civilian casualties recorded were caused by the “use of explosive weapons with a wide impact area, including shelling from heavy artillery and multiple launch rocket systems, and missile and air strikes.”

UNHCR cautioned, however, the actual figures are considerably higher since the information from “some locations where intense hostilities have been going on has been delayed and many reports are still pending corroboration.”

—Sumathi Bala