(BBC) The man arrested by police following the killing of the MP Sir David Amess has been named as Ali Harbi Ali.
The 25-year-old is being held under the Terrorism Act and officers have until Friday to question him.
Whitehall officials confirmed the man’s name to the BBC, and said he was a British man of Somali heritage.
The BBC understands Mr Ali was referred to the counter-terrorist Prevent scheme some years ago, but was never a formal subject of interest to MI5.
It also understands that his father, Harbi Ali Kullane, who was previously an adviser to Somalia’s prime minister, has been visited by police who have taken his phone for analysis.
(Text updated)
