DETECTIVES are investigating a distraction burglary where two men claimed to be undercover police officers to trick their way into a couple's home in Oxford.

Between 5.45pm and 6pm on Friday, the men entered the address in Balfour Road, Blackbird Leys, claiming that the occupants had been victims of a burglary.

They told the 75-year-old man and 68-year-old woman that they had caught one of the offenders, although he managed to escape, and they needed to check if anything was missing from the bedroom.

The men were white, aged between 35 and 40, and spoke with a local accent.

The first man was about 5ft 4in tall and average build. He was clean shaven, looked scruffy, dressed in a dark coloured sweatshirt, dark trousers and dark shoes.

The second offender was 5ft 9in tall, with dark scruffy hair and stubble on his face. He wore a blue and white checked shirt and dark trousers.

Det Con Jim Holmes, of the Oxford Burglary Team, said: "After the men had left the house the occupants noticed that a large amount of cash had been stolen. I appeal to anyone who was in the area on Friday afternoon and witnessed two men of these descriptions, acting suspiciously, to contact police.

"If police officers make inquiries at your home, make sure you ask to see their identification and examine it thoroughly.

"All genuine police officers carry a badge and also a warrant card showing their name, details and photograph. If you have any doubts regarding a police officer at your door call the Police Enquiry Centre and they will be able to check whether your caller is there legitimately.

"Crimes of this type are comparatively rare; however, I would urge all residents not to let any unexpected callers into their homes, to remain vigilant and to call the police straight away if they see anyone behaving suspiciously."

Anyone with information that could assist police inquiries is urged to contact Det Con Homes via the Thames Valley Police Enquiry Centre on 0845 5 505 505.

If you don't want to speak to police and don't want to leave your name contact the Crimestoppers charity on 0800 555 111.