Police are appealing for witnesses to an attempted robbery in which a man was threatened with a knife.

A man approached the 18-year-old victim at the rear of the Co-Op bank in Market Road, Chelmsford, at 11.15am on Monday, September 25. 

He demanded a gold chain he was wearing and threatened him. The victim left the scene to get help and the suspect left empty-handed. 

Witnesses or anyone with information are asked to contact PC Claire Wreford at Chelmsford CID on 101. 

Alternatively, contact independent crime-fighting charity Crimestoppers anonymously on 0800 555 111 or www.crimestoppers-uk.org.