Underground: Piccadilly Line suspended westbound at Cockfosters
Service is suspended on the Piccadilly Line westbound between Cockfosters and Acton Town due to a signal failure at Arnos Grove.
There is also no service between Acton Town and Rayners Lane due to planned engineering work.
A good service s in operation on the rest of the line.
More top news
Notorious London criminal, Ronnie Biggs, dies aged 84
Ronnie Biggs was a low-grade villain who landed a minor role in a headline-grabbing heist.
London's 'fatberg' tops Google's 2013 news search
It was the size of a double decker bus, and attracted some pretty big online hits too.
London firefighters free 3,012 people trapped in toilets
Londoners locked in or out of home cost taxpayer £10 million.