GAINESVILLE, Fla. -- Troopers are trying to determine why a vehicle hit and killed Sgt. William Trampass Bishop along Interstate 75 near the Alachua-Columbia County border on Saturday evening.

The crash that killed the trooper happened shortly before 6:30 p.m. in the southbound lanes of I-75 near mile marker 403, according to the Florida Highway Patrol.

Law enforcement reported Bishop was investigating a crash when a passing vehicle hit the 30-year-veteran of the Florida Highway Patrol.

Bishop was transported to an area hospital but succumbed to his injuries.

FHP Sergeant William Trampas Bishop

Southbound lanes of the interstate were closed for several hours as law enforcement investigated the crash.

FHP says charges are pending in the crash.

The Florida Highway Patrol has released a statement:

It is with the heaviest of hearts that we report Sergeant William Trampass Bishop, a member of the Florida Highway Patrol, has succumbed to injuries he sustained while on duty in Alachua County this evening. Sergeant Bishop was a 30 year veteran FHP Trooper, who, like all troopers, put the well-being of those he serves above his own to keep Florida roadways safe. Every member at the Department of Highway Safety and Motor Vehicles is grieving with Sgt. Bishop’s family during this horrific time.

Sergeant Bishop was struck on Interstate 75 southbound while he was outside of his patrol car. This is a tragedy that highlights the risks that FHP troopers encounter every day as they serve our state.

We appreciate all of the support FHP has received and continues to receive. Please keep Sergeant Bishop’s wife and son and all members of the Florida Highway Patrol in your thoughts and prayers.