Thieves snatched a chain from the neck of a tourist as he waited in traffic.

Police said two men on a motorcycle stopped alongside the victim just east of Cobbs Hill, Warwick, at about 10.20am on Monday and grabbed the chain.

The thieves escaped along Cobbs Hill Road.

A police spokeswoman added that two men on a motorcycle had made a failed attempt just 20 minutes earlier to steal a chain from a motorcyclist as he travelled along South Road, Paget, near Stovell Lane.

The spokeswoman said: “Thefts from motorcycle riders are mostly crimes of opportunity.

“We would like to encourage motorcycle riders to conceal any items of jewellery and secure exposed property when travelling on the roads, making you less of a target for this type of crime.”

The suspects were on a black motorcycle and wore full-face dark-coloured helmets.

Police have appealed for witnesses.