MASKED men burst into a house in Blackburn and threatened a couple with weapons while their three children were inside, police said.

The attempted robbery happened at a house in Sumner Street at 12.45am on Sunday, officers said.

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Detectives said up to four men wearing balaclavas went in to the house armed with weapons and demanded cash from the occupants.

They left the house empty-handed and police said nobody was injured during the raid.

No arrests have been made.

Detective Sergeant Ian Proctor said: "This was a terrifying ordeal for the victims who although left shaken were fortunately not injured.

"I would urge anyone who knows anything to contact us on 101, quoting crime number ED1606619."