An MP has died after she was shot and stabbed in a "horrific" assault in her constituency, police have said.
Jo Cox, Labour MP for Batley and Spen, was left bleeding on the ground after the attack in West Yorkshire. A 52-year-old man was arrested nearby.
One eyewitness told the BBC they heard her attacker shout "put Britain first" at least twice beforehand.
Tributes flooded in from politicians including David Cameron, Jeremy Corbyn and US Secretary of State John Kerry.
Mrs Cox's husband Brendan said she would want people "to unite to fight against the hatred that killed her".
Mrs Cox is the first sitting MP to be killed since 1990, when Ian Gow was the last in a string of politicians to die at the hands of Northern Irish terror groups.
The arrested man was named locally as Tommy Mair.
