A Worthing betting shop has been targeted for the third time in the town's 20th armed robbery since Christmas.

Police have not formally linked the latest attack on Ladbrokes in Rowlands Road to ten raids thought to have been carried out by the same gunman.

But a spokesman confirmed the robbery was being investigated by the Operation Texan team spearheading the hunt for the raider, who uses a shotgun.

In yesterday's robbery, a man burst into the bookmaker's and escaped with £200 cash after threatening staff with a shotgun.

The branch was also robbed twice within 48 hours at the end of last month.

A spokesman for Ladbrokes said: "We take all robberies and incidents that affect our staff and customers very seriously.

"We will continue to work very closely with the police, with whom we have an excellent relationship in the area. We are looking forward to an early conviction.

"In the meantime, the staff are receiving all the help and support they might require."

Nick Sandford of Worthing police confirmed the raid was being investigated by the Operation Texan team.

He said: "Police are appealing for witnesses to come forward who may have seen anything suspicious either before or after the robbery."

A £10,000 reward has been offered for information leading to the arrest of the gunman.

Anyone with information should contact the Operation Texan team on 0845 6070999.