Police are looking for a man who punched a boy twice in the face during an attempted robbery.

The 14-year-old was walking his dog in Rongrove Park, off Azalea Avenue, in Kidlington, at 6.50am last Tuesday, while listening to music on his mobile phone.

As he bent down to let his dog off the lead, a man punched him in the face.

He demanded the boy give him his mobile and then punched him again, at which point he dropped his phone, but managed to recover it.

The attacker ran off empty-handed in the direction of Maple Avenue. Police today released this e-fit of the attacker and are appealing for information.

He is described as white, about 6ft 3in tall, in his late 20s or early 30s, stocky, quite pale and has short, ginger hair.

He was wearing a beanie-style hat, a dark blue zip-up waterproof jacket and black tracksuit bottoms with two white stripes on the leg.

Pc Mike West, of the Cherwell Robbery Team, said: "It is unacceptable for a 14-year-old to go out to walk his dog early in the morning and be attacked like this.

"And for a man of this age to use violence against a teenage boy in this way is deplorable and we need to find him.

"Can anyone who recognises this man from the e-fit please contact us? We would also like to speak to anyone who may have seen this attack take place or saw a man of this description in the area.

"We believe there was another man jogging in the park at the time and we would particularly like him to get in touch."

Anyone with information should call police on 08458 505505 or speak anonymously to Crimestoppers on 0800 555 111.