(KNZA)--A stretch of Brown County highway remains closed Wednesday evening, as emergency crews remain on the scene of a fiery and deadly crash. 

According to law enforcement officials at the scene, the fatal afternoon wreck, on U.S. Highway 75, near Sabetha, happened when a semi-truck and motorcycle collided. 

The truck caught fire following the impact. The motorcyclist is believed to have died instantly. 

The Kansas Highway Patrol is in charge of the investigation. 

No other details have been immediately made public. 

The highway, from Sabetha to U.S. Highway 36, has been shutdown due to the wreck, with motorists being detoured onto Old Highway 75. 

The wreck happened shortly before 3:00.