Counter-terrorism teams are searching a property in Crawley amid claims that a Briton staged a suicide bomb attack on a prison in Syria.
Officers are examining a house in Martyrs Avenue in Langley Green after reports that a UK jihadi, who used the name Abu Suleiman al-Britani, carried out the deadly bombing.
He is said to have driven a lorry into a jail in Aleppo and detonated a bomb last week, and is thought to be the first Briton to stage a suicide attack in the war-torn state, where increasing numbers of UK-born extremists have gone to fight.
More top news
Two women had to be rushed to hospital after the driver of a 'BMW' mounted the pavement in a hit-and-run crash.
The shocking moment a cyclist was threatened by a driver with a metal baseball has been captured on a video posted online.
Music festivals and big sporting venues put on on “high alert” - one of Britain's most senior anti-terror police officers has revealed.