Tooting Braodway station has re-opened following a fire alert.

From about 7pm tonight, people started taking to Twitter wondering why the station had shut its doors tot he public.

Not long after, The Northern Line's official account gave a reason.

It said that the "station is closed while we investigate a fire alert."

But about 45 minutes later the station was re-opened.

Trains will likely be delayed or disrupted as a result of the closure.