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Huge manhunt for Boston bomb suspect Huge manhunt for Boston bomb suspect
(35 minutes later)
US police are hunting a suspect in Monday's deadly Boston Marathon bombing, after another suspect was killed in a car chase and shoot-out. Heavily armed police are searching a US town house-by-house for a suspect in Monday's Boston Marathon bombing.
Police began the manhunt on Thursday after an officer was killed at a university campus. Residents of Watertown, near Boston, have been warned to stay in their homes, public transport in the area has been halted and shops are closed.
Two suspects stole a car and threw bombs and traded gunfire with police chasing them. An officer was wounded. One bombing suspect was killed by police after a car chase in Watertown, but the other man managed to escape.
Three people were killed and more than 170 wounded when two bombs exploded near the finish line of the marathon. Three people died and more than 170 were hurt when two bombs exploded near the finish line of Monday's marathon.
The authorities tracked the two suspects to Watertown, west of Boston, where one was killed and another escaped.
Police later confirmed that the two men they were chasing were suspects in Monday's marathon bombing.
The FBI has released several images of two men they were hunting in relation to the bombing.The FBI has released several images of two men they were hunting in relation to the bombing.
One was wearing a white cap, the other had a black cap.One was wearing a white cap, the other had a black cap.
Police said "suspect number one" had been killed, and they were looking for "suspect number two", the "white-capped individual".Police said "suspect number one" had been killed, and they were looking for "suspect number two", the "white-capped individual".
The authorities in Massachusetts Bay have suspended the transport system and no vehicles are being allowed in or out of the Watertown area.The authorities in Massachusetts Bay have suspended the transport system and no vehicles are being allowed in or out of the Watertown area.
Officials have told people in the area to stay at home, and warned businesses not to open. Officials have told people in the vicinity to stay at home, and warned businesses not to open.
Armed police Swat teams are going from door-to-door in Watertown searching for the suspect.
Blast woundsBlast wounds
An earlier police statement said the two men were suspected of killing a police officer on campus at the Massachusetts Institute of Technology (MIT) late on Thursday. The manhunt began late on Thursday when a police officer was killed on campus at the Massachusetts Institute of Technology (MIT), according to a police statement.
They then stole a car at gunpoint and drove away with the car's owner still on board. Two men carjacked a driver at gunpoint and drove away with the driver still in the car. They released the man unharmed.
They released the driver unharmed. Police chased the suspects, who threw bombs and exchanged gunfire, seriously wounding one officer.
After a car chase, witnesses in Watertown heard several explosions and a gun-battle lasting 10 minutes. In Watertown, officers and the men were involved in a gun-battle lasting 10 minutes, according to witnesses.
Video footage emerged showing a fully-clothed suspect lying on the floor, surrounded by police.Video footage emerged showing a fully-clothed suspect lying on the floor, surrounded by police.
More video was shown by US media of a suspect being led into a police car after being stripped of his clothes.More video was shown by US media of a suspect being led into a police car after being stripped of his clothes.
But it is not clear who the men were - and what happened after their apparent arrest. But it is not clear who the men were, or what happened after their apparent arrest.
Dr Richard Wolfe, of the Beth Israel Deaconess Medical Center, said the suspect was brought in with multiple blast and gunshot wounds to his upper body. Dr Richard Wolfe, of the Beth Israel Deaconess Medical Center, said an individual was brought in with multiple blast and gunshot wounds to his upper body.
He was in cardiac arrest when he arrived at hospital and despite attempts to resuscitate him, he was pronounced dead at 01:35 (05:35 GMT), Dr Wolfe said. . He was in cardiac arrest when he arrived at hospital and despite attempts to resuscitate him, he was pronounced dead at 01:35 (05:35 GMT), Dr Wolfe said.
Police also confirmed that an officer had been critically wounded in the chase.
Boston police Commissioner Ed Davis said he believed the man being hunted in Watertown was a "terrorist".Boston police Commissioner Ed Davis said he believed the man being hunted in Watertown was a "terrorist".
"We believe this to be a man who came here to kill people," he said."We believe this to be a man who came here to kill people," he said.
Three people were killed and more than 170 wounded when the two bombs exploded near the finish line of the Boston Marathon.Three people were killed and more than 170 wounded when the two bombs exploded near the finish line of the Boston Marathon.
The blasts killed Martin Richard, aged eight, Krystle Campbell, 29, and Lu Lingzi, 23, a postgraduate student from China.The blasts killed Martin Richard, aged eight, Krystle Campbell, 29, and Lu Lingzi, 23, a postgraduate student from China.
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