Detectives are appealing for information after £200,000 worth of jewellery was stolen from a shop.
Raiders also got away with around £2,000 in cash after targetting the Sona Mohal jewellers on Blackburn Road in Accrington town centre.
Police said the offenders got in via the backyard and forced their way through the doors before smashing through plasterboard to gain entry to the room where the safe was.
After cutting a hole in the safe they stole a quantity of rings, necklaces and bangles.
Detective Constable Louise Miller from Accrington CID said a silver Mercedes was seen leaving the scene along with three men who were carrying a holdall.
She said: “I would appeal to anyone who was in the area at the time of this offence and who may have witnessed something to come forward and contact the police.
“We are keen to trace the offenders down track down the property that has been stolen. I would ask the public to remain vigilant around jewellery being passed on in the community and should anyone have information then I would ask them to contact the police.”
The incident happened on Saturday, August 11. The shop is now closed.
Anyone with information is asked to call Accrington CID on 101.
