DETECTIVES have stepped up the hunt for a mugger who attempted to rob a disabled man at knifepoint.

The 51-year-old wheelchair user had the knife brandished at his throat after he withdrew cash at a TSB ATM on Poplars Avenue, Orford.

Now Detective Constable Steve Hopkins wants anyone who saw the attempted robbery to get in touch.

He said:"A number of people were passing by at the time and I would like anyone who saw this attack."

The incident happened on July 22 at 10.30am after the victim was approached by a man on a bike.

But when the victim who was on his mobility scooter refused to hand over his money the-would be robber fled down an alley at the side of Orford Library.

A spokesman for Warrington police said: "The victim was shaken but assisted by passers by.

"It is believed the offender had been having an argument with a female before the incident and detectives are keen to speak to her as should could be a key witnesses."

The attacker is about 25-years-old and 5ft 10ins tall with a long of facial stubble.

He was thin with dark hair, dark eyes and sunken cheeks.

At the time he wore a parka jacket with fur lining around the hood.

The woman police want to speak to is around 25-years-old with dark blond hair tied back in a short pony tail.

She had a shaped face and wore a red Sprayway jacket with three quarter length grey tracksuit bottoms.

She was also on a bike.

Witnesses or anyone with information should call DC Steve Hopkins on 01244 613834.

Alternatively call Crimestoppers anonomously on 0800 555 111.