WATERTOWN, MA - Howling sirens pierced the night quiet, and flashing lights lit up the darkness, as dozens of officers from state and city police responded to the deadly shooting on the campus of the Massachusetts Institute of Technology in Cambridge.
Hardly an hour later, they were chasing suspects in a hijacked vehicle just less than five miles away.
There were reports that explosives may have been involved before police cornered the vehicle.
"Police were in a standoff with the vehicle just down the hill," said CNN photographer Gabe Ramirez saw the chase end in Watertown. They ordered the suspect out of vehicle and commanded he strip down naked before putting him in a patrol car and transporting him away from the scene, Ramirez said.
Police ran down the streets of Watertown, according to CNN affiliate WCVB, which broadcast images from the pursuit. One man could be seen lying face down on the street in a surrender pose with his hands outstretched in front of him and his legs crossed.
Dozens of police from various units arrived in Watertown, some in SWAT uniforms, others wearing helmets. Large crowds gathered around a trove of emergency vehicles that had congregated in the neighborhood, WCVB reported.
But even with all this activity it was unclear if the arrest in Watertown was related to the shooting on the MIT campus or any other incident in the Boston area.