JOPPA, MD—Crews are on the scene of a serious, Saturday afternoon crash on Interstate 95 in Joppa.

The crash was reported at just after 12 p.m. along northbound I-95 prior to the Mountain Road exit.

Multiple ambulances are responding for a total of four injured patients, according to the Joppa-Magnolia Volunteer Fire Company.

Northbound I-95 has been shut down.

Motorists should use an alternate route.