Update: Taxi driver says Roy Keane 'exploded in a foul-mouthed rant' after being told to 'smile'

Police are investigating an alleged road rage bust-up between Roy Keane and a taxi driver.

The former Manchester United captain is accused of launching a foul-mouthed tirade after climbing out of his black Range Rover to berate the driver at traffic lights in Altrincham.

The alleged rant was witnessed by stunned onlookers near the Unicorn pub at the junction of Lloyd Street and Railway Street in Altrincham town centre at around 11.30am today.

Keane, 43, who lives around a mile away in leafy Hale, was allegedly seen swearing and making obscene gestures through the window of the taxi before getting in his car and driving away.

The argument is reported to have began when the two cars were parked in the Cheshire village before coming to a head further up the road.

The driver then reported the incident. A Greater Manchester Police spokeswoman confirmed the force is investigating.

She said: At 11.30am this morning, Friday 30 January 2015, police were called to Ashley Road, Altrincham to a report that a man had behaved aggressively towards another man.

“An investigation is underway to establish the exact circumstances surrounding the incident.”