A group of 140 senior doctors have written to David Cameron expressing concern over plans to close several accident and emergency units in west London.
In an open letter, the doctors said they have yet to see evidence that plans to centralise and downgrade A&E services are beneficial to patients.
More top news
Shocked neighbours have told of their fear and paid tribute to a "nice lady" found stabbed to death at her home in Muswell Hill.
The deputy leader of far-right group Britain First has been arrested in London over a speech made at a rally in Belfast this summer.
Captain Mike Green, a senior flying instructor, was piloting the two seater helicopter involved in the crash.