The tight-knit motorcycle community was reeling Sunday after a horrific collisionleft seven people dead and three injured in a remote area of northern New Hampshire.

The group of 10 motorcycles collided with a pickup towing a flatbed trailer on Route 2 around 6:30 p.m. Friday in the small town of Randolph. The pickup caught fire, and witnesses described the scene as “devastating.”

Dawn Brindley, a woman riding with the group, survived the crash after getting off her bike and rolling away, New Hampshire TV station WMUR reported. 

“It was just all fire,” Brindley told WMUR. “I just looked around. Somebody helped me up. I was just hysterical.”

Authorities searched for clues to the accident Sunday and were working to identify the dead. Two of the three people injured and taken to hospitals were released Saturday.

The crash involved members of Marine Jarheads MC, a motorcycle club in New England that includes Marines and their spouses.

Deadly collision: 7 dead, 3 hurt after motorcycles and pickup truck collide on rural road in New Hampshire

Members of the motorcycle community have already been offering to help victims’ families, said Cat Wilson, who organizes a motorcycle charity event in Massachusetts and is a friend of some of the victims.

“When something like this happens, we all feel it,” Wilson said. “There is no tighter community than our biker community.”

Investigators identified the pickup driver as Volodoymyr Zhukovskyy, 23, an employee of Westfield Transport, a company in Springfield, Massachusetts. Zhukovskyy survived the accident, did not need to be hospitalized and has not been charged, authorities said.

Dartanyan Gasanov, owner of Westfield Transport, told The Boston Globe that he planned to talk to investigators Monday and has been unable to reach Zhukovskyy. 

Authorities have asked for the public’s help by providing any videos, photos or other information about the accident or the parties involved. One of the agencies investigating the crash is the National Transportation Safety Board.

“This is one of the worst tragic incidents that we have investigated here in the state,” New Hampshire State Police Col. Chris Wagner said. “It’s going to be a very lengthy investigation.”

Contributing: The Associated Press