ARKANSAS CITY, Kan. (KSNW) — Investigators are looking into whether a motorcyclist was speeding when his bike crashed with a car north of Arkansas City Thursday night.

The crash happened shortly after 8 p.m. at U.S. Highway 77 and Summit Street. Sheriff David Falletti said Chase Roberts, 20, of Arkansas City, was riding a 2023 Kawasaki ZH2 north on Summit.

A car was leaving U.S. 77 to turn left onto Summit.

Falletti says several witnesses saw the car stop at the stop sign and then begin crossing the northbound lanes of Summit to get to the southbound lanes.

The sheriff said the witnesses also saw the motorcycle change lanes and accelerate rapidly. The witnesses said the bike was speeding.

The bike and the car crashed, throwing the motorcyclist. The motorcycle burst into flames.

Roberts died at the scene.