The crash occurred at about 4 p.m. at the intersection of Philadelphia Road and Old Mountain Road.
At the scene, paramedics found a three-vehicle crash and a total of six patients requiring treatment for injuries.
One vehicle overturned as a result of the accident.
Three medic units are responding to the scene.
Motorists should avoid the area.
4:15p #jmvfc8 is at a motor vehicle collision on MD-7/Philadelphia Rd & Old Mountain Rd S #Joppa. One vehicle is on its roof. There are 6 patients, all minor; 3 ambulances called (2 JMVFC 1 @FallstonFireCo) #MDTrafficAdvertisement
— Joppa-Magnolia VFC (@jmvfc8) May 11, 2018