Montgomery County police are trying to figure out what caused two cars to slam into each other Sunday night, killing one of the drivers.
Officers were called to Muncaster Mill Road in the Rockville area at about 11:30 p.m. Sunday.
Investigators say 34-year-old Juan Francisco Diana was traveling southbound in a black 2014 Ford Focus when his car and a white Ford Taurus traveling northbound collided. The cause of the accident is under investigation.
The woman driving the Ford Taurus died at the scene. Police say Diana was taken to an area hospital with injuries that are not life-threatening.
Police have not released the woman's identity.
Muncaster Mill Road is currently closed at Bowie Mill Road for the police investigation.
Anyone who witnessed the crash is asked to call police at 240-773-6620.