ARMED police swooped on Leytonstone Tube station after a man was seen with a gun.

A member of the public called police at 2.50pm today (Monday) after spotting a man apparently carrying a handgun walking from Fairlop Road towards the Grove Green Road entrance of the station.

Witnesses reported seeing four police cars speed into the bus station area just after 3pm and scores of armed officers run into the station and searched the area.

A police helicopter was also seen overhead.

A police spokesman said enquiries are on going and no arrests have been made.