Cambridge carjacking turns into gun battle in Watertown; at least one officer shot
Police from Watertown, Cambridge and Boston are in the area of Dexter and Laurel streets in Watertown, where two “Middle Eastern” men with guns and possibly grenades were shooting at officers. At least one officer has been shot.
What might be an IED was found on Laurel Street.
One suspect was run over and nabbed by police. The second took off on foot and police said he was armed with both a gun and either grenades or IEDs.
After carjacking a Mercedes SUV at gunpoint, they dropped the driver off at a Memorial Drive, then at some point stole a State Police pickup.
Update from the Guardian
Boston policeman shot dead and explosions in Watertown chase
Police on the campus of Boston MIT where an officer was shot dead. A chase with several suspects and explosions took place later in the Watertown area, police said. Photograph: Mario Tama/Getty
A police officer for the Massachusetts Institute of Technology (MIT) has been shot and killed at the campus outside Boston, authorities said early Friday. As the manhunt began for the shooter, police reportedly became involved in a chase with several suspects in which explosives were said to have been thrown from a vehicle.
Live news reports said police officers were dealing with explosives left on the ground after the chase in the Watertown area, near Cambridge where MIT is located and eight miles to the west of central Boston. Police were told to switch off mobile phones and other electronic devices for fear of setting off explosives.
It was not clear whether the two incidents were connected. MIT is in Cambridge to the north-west of the Boston city centre, and Watertown is further to the west of that.
The police officer at MIT had been responding to report of a disturbance Thursday night when he was shot multiple times, according to a statement from the Middlesex district attorney and Cambridge police. It said there were no other victims.
MIT said on its website that police were sweeping the campus in Cambridge and urged people to remain indoors until further notice. People were urged to stay away from the Stata Building, a mixed-use building with faculty offices, classrooms and a common area.
The drama comes little more than three days after the twin bombing of the Boston Marathon that killed three people, wounded more than 180 others and led to an increase in security across the city.
The campus shooting took place about 10.30pm local time outside an MIT building, according to state police spokesman Dave Procopio.
The officer, who was not immediately identified, was taken to a hospital where he was pronounced dead from his wounds.
About 11,000 people attend the prestigious university.