Six people were hospitalized Monday night following a violent four-vehicle crash in unincorporated Plainfield that caused a semi-truck to go up in flames, according to the Illinois State Police.

The accident occurred at about 6:30 p.m. on U.S. 30 just east of 111^th Street when an eastbound 16,000-pound construction vehicle crossed the center line, striking a passenger car and pickup truck and colliding head on with the semi, Trooper R.A. Caves said.

The driver of the construction truck was seriously burned and airlifted by LifeStar to Loyola University Medical Center in Maywood, Caves said. He was conscious at the time he was transported, and police went to the hospital Thursday night in the hope that he might be interviewed about the cause of the crash, Caves said.

The semi driver was able to get out of his truck before it was engulfed, Caves said. He received burns to his arms and a minor head injury, and was transported to Rush-Copley Medical Center in Aurora.

Also transported to Rush-Copley were the driver of the pickup truck, who received a serious arm injury, and three people in the passenger car, whose injuries were described as minor.

"The truck was full engulfed by the time we got there, and I believe it burned down to the ground," Caves said.

The construction truck received extensive front-end damage as did the pickup truck, Caves said. The damage to the passenger car was to the back end, likely occurring when it was clipped before the truck collided with the pickup and semi, he said.

None of the victims' names were available Thursday night. The accident is under investigation and no tickets have been issued, Caves said.