At around 4:30 p.m., paramedics responded to Mountain Road in the area of Belair Road.
At the scene, crews reported a serious accident involving multiple vehicles.
At least one person was killed in the crash.
Mountain Road is currently closed and crews from the Fallston Fire Company, Bel Air Volunteer Fire Company, Kingsville Volunteer Fire Company, and Joppa-Magnolia Volunteer Fire Company are on the scene.
Motorists should avoid the area.