As it happened: Manhunt for Boston bomb suspect

Key points

  • Boston police have detained Dzhokhar Tsarnaev, the surviving suspect in the Marathon bombing, after an operation in the suburb of Watertown.
  • His brother Tamerlan Tsarnaev, 26, also a suspect, was killed in a shootout with police near Watertown on Thursday night.
  • The search began after the fatal shooting of a police officer at the Massachusetts Institute of Technology (MIT) in Cambridge.
  • The governor of Massachusetts has relaxed his order for people to stay indoors in the Boston area and has announced the reopening of the subway system. He urged continued vigilance.
  • All times BST.

Live text

Reporting:

  • Patrick Jackson 
  • Jastinder Khera 
  • Sean Fanning 

STANDARD 0907

Welcome to our coverage of the major police operation under way on the outskirts of Boston in the US.

STANDARD 0910

A situation has been developing rapidly in the middle of the night near Boston, with a massive police presence growing over the last few hours in Watertown. It comes after an incident at the Massachusetts Institute of Technology (MIT) in nearby Cambridge, where a police officer was shot several times and killed.

STANDARD 0912

Cambridge police said the officer was responding to a report of a disturbance in the area of the MIT campus at around 22:30 (02:30 GMT) when he was shot and suffered "multiple wounds". He was taken to hospital where he was pronounced dead.

STANDARD 0913

Later, after witnesses reported hearing explosions and gunfire in Watertown, local TV footage showed a man on the ground surrounded by police - before being led away, apparently naked.

STANDARD 0917

State police are warning residents in the area to stay inside and be careful - using Twitter to advise that people should "not answer door, stay away from windows, keep doors locked".

STANDARD 0920

Police are now holding a news conference detailing what happened overnight: "We understand one suspect was able to flee from the police. One police officer was struck and is now at hospital," the police said.

BREAKING Breaking News

Police in Massachusetts hunting man they say is second Boston bombing suspect.

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Police reiterate that the suspect is armed and dangerous: "We believe this to be a terrorist, a man who has come here to kill people."

STANDARD 0928

Police said they are actively searching for the white-capped individual suspected of involvement in the bombing of the Boston Marathon. They said footage from a local 7-Eleven in Cambridge last night showed him dressed in a grey sweatshirt. He has brown curly hair.

STANDARD 0930

Police say there was an shootout between Watertown Police and two suspects in an SUV, and several explosive devices were thrown from the car at officers.