UPDATE (WZZM) -- Westbound I-96 reopened at 6:20 p.m. Monday.
IONIA, Mich. (WZZM and Lansing State Journal) -- A 41-year-old Chicago man was airlifted to a local hospital after two semi-trucks and a bus collided on westbound Interstate 96.
June Bang and Greg Bishop were aboard the greyhound bus, headed to Grand Rapids.
"We got hit from the rear, so we couldn't see anything", says Bishop. Bang says, "I felt the hit". As the two passengers got off the bus, they could see the mangled mess. "The truck driver looked pretty bad, he was airlifted out."
Michigan State Police say one of the semi's was slowing down for construction ahead and was hit from behind.
"Upon arrival, we found 2 semi trucks, rear end collision, also impacted the greyhound bus", says Lt. Brody Boucher.
The driver of one of the semis was air lifted to the hospital with critical injuries. The other driver wasn't injured.
About 25 people on the bus got off safely.
"To my knowledge, no significant injuries on the greyhound, there were several people checked out by Life EMS."
Many of the passengers, like Bang and Bishop walked to the nearest exit and found their own way home.
A portion of the highway remained closed for most of the afternoon as police investigated the crash. Traffic is currently being rerouted off of I-96 westbound and going over the overpass on M-66 to bypass the accident scene.