Police are hunting a gang who tied up a housekeeper after forcing their way into a house in Lancashire.
The men, who were dressed in white overalls and were wearing face masks, got into the house in Sandy Lane, Brindle, at about 0830 GMT.
They bound the housekeeper's mouth and hands and searched the house, but the alarm sounded and the men ran off and got into a car.
The woman managed to free herself and escape unharmed but was badly shaken.
Lancashire Police said it was not yet known whether anything was stolen from the property.
They are appealing to anyone who may have seen the men as they got into their blue four-wheel drive vehicle.
Det Insp Paul Rudd, from Chorley CID, said: "I would appeal for anyone who has information to come forward and contact us.
"When the three men ran across Sandy Lane to get to their getaway vehicle, a number of cars had to stop as they ran out into the road.
"I would be keen to hear from those motorists and also anyone else who witnessed anything suspicious."