Via the BBC:
http://www.bbc.co.uk/news/uk-24515154Four men have been arrested in London in a counter-terrorism operation, the Metropolitan Police have said.
Scotland Yard said they were held under the Terrorism Act 2000 on suspicion of the commission, preparation or instigation of acts of terrorism.
Armed officers were involved in the arrests, which took place at around 19:10 BST in the Wapping, Paddington and Peckham areas.
Police said searches were taking place at six addresses.
That is all thus far. Page will be updated as more information comes in.