The vehicle's driver also sustained non-life-threatening injuries, said MTA spokesman Paul Shepard. All seven people were transported to area hospitals, he said.
Shepard said that at 6:42 a.m., a southbound light rail train was struck by the vehicle at the train crossing between Beaver Dam and Warren roads in Cockeysville.
Shepard said that the injured passengers were expected to be released from hospitals within an hour of the incident. He said the light rail has resumed normal service at 8:05 a.m and he added that the incident is under investigation.