Commuters have been evacuated from Victoria Station following a security alert.
Signs reading “Emergency – do not enter” have been activated at the station.
Police have also rushed to the scene with the British Transport Police warning of a “security alert”.
They tweeted: “Officers are responding to a security alert at Victoria station. Officers are on the scene. More information when we get it.”
One Twitter user said: “Just been evacuated from Victoria station. Police everywhere! What’s going on?!”
Another said: “Do not go to Victoria station. There is an emergency security alert going on there. It has been evacuated!”
Transport for London said: “Victoria Rail station has closed due to a security alert.
“Southern Rail, South East Railway and Gatwick Express services are disrupted.
“Ticket acceptance is in place on the London Underground.”