The following is a press release from the Middlesex District Attorney's Office:
CAMBRIDGE -- Massachusetts State Police and Cambridge Police are investigating a fatal shooting this evening in Cambridge, Middlesex Acting District Attorney Michael Pelgro and Cambridge Police Commissioner Robert Haas announced this evening.
An MIT campus police officer responding to a report of a disturbance in the area of Vasser and Main streets was reportedly shot. According to authorities, the officer was found evidencing multiple gunshot wounds. He was transported to the hospital and pronounced deceased.
Authorities launched an immediate investigation into the circumstances of the shooting.
There are no other victims. No arrests have been made. The investigation remains ongoing.
Go to boston.com for further updates.