Firefighters pumped water out of the basement of a nightclub on Tottenham Court Road.
The basement and sub-basement were flooded to a depth of 600 millimeters (around 23 inches). Fire crews used a high-volume pump to remove the water.
The Brigade was called at 1425 and the incident was over for crews by 2156. Firefighters from Islington, Soho, Paddington and Barnet fire stations were at the scene.