Footage captured by a resident and posted on Facebook purportedly shows a shootout following a car chase in Watertown, Massachusetts close to the city of Cambridge. Explosions were also heard during the confrontation, which is linked to a fatal shooting of a MIT Campus Police officer and a series of robberies earlier in the night. 

According to news reports, at least one suspect was shot and arrested. Another suspect is reportedly at large as federal, state and local authorities are converging in the area. 

WARNING! STRONG LANGUAGE