Matt Grice, a featherweight fighter and police officer, was among those injured in a three-vehicle collision Sunday afternoon on northbound U.S. 177 at 45th Street in Shawnee.

Grice, who remained hospitalized in critical condition Monday at OU Medical Center in Oklahoma City, is a mixed martial arts fighter currently signed with the Ultimate Fighting Championship. He also works as an Oklahoma City police officer.

The Oklahoma Highway Patrol worked the accident scene in Shawnee Sunday afternoon.

Trooper Justin Miller's report, which lists Grice as Donald Matthew Grice, 32, shows he was driving a 2000 Jeep Wrangler and was stopped at the red light on northbound U.S. 177 behind a stopped 2013 Jeep Wrangler driven by Christopher Seward, 23, of Sparks.

The OHP reports a 2004 Ford Econline van, driven by Michael Monroe, 53, of Oklahoma City, struck Grice's Jeep, which caused it to hit Seward's vehicle.

Grice was taken by REACT EMS ambulance to OU Medical Center with a head injury, the patrol reported.

Seward, along with his passenger, Keely Seward, 21, also of Sparks, were both transported by REACT EMS to St. Anthony Shawnee Hospital, where both were treated for neck injuries and then released, the OHP said.

Monroe was not injured, but he had two children in the van with him at the time of the accident. Eleven-year-old Keandre Bruener of Oklahoma City refused any medical treatment at the scene, while Mason Seale, 8, Bethany, went by REACT ambulance to St. Anthony Shawnee Hospital. Mason was later transferred to OU Medical Center, where he was admitted in good condition with a head injury, the patrol reported.

Cause of the collision was listed on the report as inattention, with Monroe distracted by a passenger.

According to the trooper's initial report, seat belts were in use by everyone except Grice, but the trooper updated the report Tuesday afternoon. The update shows that after visiting with emergency personnel and others at the scene, it was determined Grice was wearing a safety belt at the time of the collision.

Reports released on Monday indicated Grice had undergone surgery.

Assisting the trooper at the scene was Absentee Shawnee tribal police as well as the Shawnee Fire Department, the report shows.