Police say that the truck driver who crashed into a limo bus carrying Tracy Morgan and friends, killing at least one person, had been "dozing" at the time. "[The] driver failed to observe slow-moving traffic ahead," New Jersey State Police Sgt. First Class Gregory Williams said, according to ABC. "He observed at the last minute—just prior to impact—the limo bus carrying Morgan and his party."

Morgan, fellow comics James “Uncle Jimmy Mack” McNair, Ardie Fuqua and Harris Stanton, and manager Jeffrey Millea were all in the limo bus on the New Jersey Turnpike on their way back to NYC after a comedy show in Delaware around 1 a.m. Saturday morning when the crash occurred. McNair was killed and at least two others were injured in the crash. The driver of the 18-wheeler truck, Kevin Roper, is expected to be charged in the six vehicle crash. Based on photos, Roper's vehicle appears to have been a Wal-Mart truck.

Police said that when Roper saw the limo bus in front of him, he swerved left to avoid it, but struck it in the rear anyway, then hit another vehicle. The limo bus driver lost control, began rotating clockwise, and then turned over onto its left side, hitting three other cars in the process.

Morgan, 45, and Milea were flown to Robert Wood Johnson University Hospital in New Brunswick, where Morgan is still in critical condition. "His family is now with him and he is receiving excellent care," publicist Lewis Kay said in a statement. "We don’t anticipate much of a change in his condition today."

"He’s not in good shape," Morgan’s ex-wife Sabina Morgan told the Daily News. "I’m traumatized. I’m so upset. I can’t believe it. It’s like I’m in a nightmare." She told them he has a broken leg and is still unconscious, but doctors expect him to recover. She added that the couple's three children are "not holding up well at all."

Below, you can see a photo Fuqua posted to Instagram before the incident.