Firefighters today investigated reports of smoke inside a tunnel at a busy Tube station.
Staff raised the alarm at London Bridge station after smoke was reported inside one of the tunnels on the Jubilee line this afternoon.
The line was suspended between Canary Wharf and Waterloo, Transport for London said.
London Fire Brigade were called to the scene shortly after 3pm.
On Twitter, pictures emerged of police and firefighters outside the station.
Stuart Crooks tweeted: "Something going down at London Bridge."
Sam Sevenoaks wrote:"Avoid the Jubilee line people. Apparently there's smoke been found at London Bridge station, so the line has been suspended."
Another user named Anthony said: "Fire brigade and police at London Bridge."
An LFB spokesman said it was investigating a fire alert after signs of smoke were reported in the tunnel.
A TfL spokesman said the incident was stood down and Jubilee services resumed at 4pm with severe delays on the line.
