A ROBBER pulled a handgun on a terrified teenage shop worker.

A man went into Z Y Grocers in Infirmary Street, Blackburn, at 4.30pm yesterday and asked a 15-year-old shop worker for cigarettes.

The man then pulled out a dark silver handgun from his waistband and demanded cash.

Before any money was handed over someone entered the shop and caused the armed man to leave.

The offender is thought to be around 30 years old.

Detective constable Andy Bleasdale said: "Thankfully this man didn't manage to get away with anything but that said, the boy who was threatened by the firearm has understandably been left quite shaken up.

"If you recognise the man in the images or you have any information that could assist us with our investigation please get in touch."

You can email 4048@lancashire.pnn.police.uk, call 01282 472709 or call 101 and quote incident reference 986 of November 11.