Shortly after police cleared the scene at Bunker Hill Community College in Boston's Charlestown neighborhood following one threat on Tuesday afternoon, officers responded to the campus again.
Massachusetts State Police said campus police called them to report a suspicious vehicle at about 4:45 p.m. near Perimeter Road. The state police bomb squad responded to the scene.
After the scene was cleared, campus police reported a second suspicious vehicle was being investigated a couple hours later on the opposite side of the Gilmore Bridge.
A statement from Bunker Hill Community College said both incidents were deemed clear and that police would continue to monitor the area.