A school boy has been arrested after bus passengers reported seeing a gun.

Police were called at about 4pm on Tuesday February 28 to reports of a man on a bus travelling from Purley towards Croydon with a firearm.

When the suspect, aged 13, got off the bus in Croydon town centre, officers arrested him on suspicion of possession of a firearm or imitation firearm with intent to cause fear of violence.

They also recovered what is believed to be a bb-type weapon.

A police spokesman said: "The boy has been bailed to return to a south London police station in late March pending further enquiries."