Police are hunting a robber who punched a pregnant petrol station attendant in the stomach.

The incident happened at Flush Garage on Wakefield Road, Liversedge, last Sunday at about 3pm.

A spokesman for West Yorkshire Police said the 19-year-old woman was serving behind the counter when a Fiat Punto containing five men pulled onto the forecourt.

Three of them went in to the shop and one went to the counter and asked for tobacco.

The assistant had taken the money and opened the till, when the man jumped over the counter and pushed her.

"The woman managed to close the cash drawer and when she refused the man's demands to open it, he punched her in the stomach," the spokesman said.

The suspect then pulled the cash drawer from the till and the three escaped in the car.

The vehicle, which had been stolen the previous night from the Crossland Moor area of Huddersfield, was later found abandoned on Smithies Lane, Heckmondwike.

The assistant was 12 weeks pregnant but her baby was not harmed.

The suspect, shown above in an e-fit picture, was white, aged between 30 and 35, of medium build and between 5ft 7ins and 5ft 8ins tall. He had dark, curly brown hair, stubble, bushy eyebrows and was wearing gold-rimmed glasses.

Anyone with information, especially a customer who bought a car vacuum token just before the robbery, should contact (01924) 431086 or (01924) 431060.