DETECTIVES are investigating an armed robbery at a Burnley bookmakers which saw a raider threaten a member of staff with a machete.

An inquiry is underway after a balaclava-clad man burst into the Coral shop in Hammerton Street, around 8.30pm last night.

Insp Michael Johnson, of Lancashire Police, said: “An offender has gone into the premises and threatened a female member of staff with a machete.

“He demanded money, which other members of staff have handed over before he fled the scene.”

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Meanwhile staff have raised the alarm with police, who were on the scene within minutes.

Initial suggestions are that the raider has escaped from the bookmakers on a BMX bike.