LONDON ? British lawmaker Jo Cox has died after being attacked in her constituency on Thursday, police said.
Cox, 41, was known for social-justice campaigns and seen as a rising star in the opposition Labour Party.
Britain's prime minister called her death a "tragedy" and offered prayers to Cox's husband and two small children.
Cox was attacked in broad daylight shortly before 1 p.m. in Birstall, not far from the city of Leeds.
"I am now very sad to have to report that she has died as a result of her injuries," West Yorkshire Police's Acting Chief Constable Dee Collins told a news conference.
A man has been arrested and police are not seeking any other suspects in relation to the attack, Collins added.
Police said weapons ? including a gun ? were recovered at the scene but have not provided details on a possible motive or specified the nature of Cox's injuries.
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