UPDATE Dec. 3, 2017: A fourth person has died in the hospital following a car crash in Hancock County.

The fourth victim was 23-year-old Deidra Seal. She was in critical condition and was being treated for her injuries at Holston Valley Hospital.

Authorities said 31-year-old Dustin Johnson, 19-year-old Jesse Weems, and 22-year-old Starla Dalton all passed away right before midnight on Saturday.

Dispatch said authorities were called to the scene off of Main Street in downtown Sneedville. A car ran off the road and collided into a tree and then a parked truck.

Daisy Greene lives just off of Main Street. She said to woke up to a loud noise. She saw the car had crashed into her yard.

"It's horrible to think about the images I saw last night," Greene said.

Greene said her neighbors started running as the car caught fire.

"I just heard them holler for water," she said. Greene grabbed buckets of water from her house and tried to put out the flames. By the time the ambulance arrived, she said, the fire was out.

"But they still couldn't get out because they were trapped," she said.

Dee Lawson, Jesse Weem's sister, heard about the news around 1 a.m.

"I'm still in shock," Lawson said, "I just saw him."

The close knit community is still grappling with the loss of friends and loved ones.

"The families were good people. The kids were good kids. It's heartbreaking," Rita Lawson, who lives nearby, said.

The cause of the crash is still under investigation.

PREVIOUS: Three people are dead and one is in critical condition after a car crash in Hancock County.

Dispatch says they were called to the scene just before midnight off of Main Street in downtown Sneedville. That's where a car ran off the road and collided with a tree then a parked truck.

Authorities say 31-year-old Dustin Johnson, 19-year-old Jesse Weems, and 22-year-old Starla Dalton were killed. 23-year-old Deidra Seal was taken to the Holston Valley hospital in critical condition.

We'll update you on her condition and the cause of the crash when 10News learns more.