POLICE are warning elderly people about a teenage caller they believe may be lying about a medical condition to gain access to their homes.

The young man visited three homes in West Cornforth, between 7pm and 8pm on Bank Holiday Monday, asking for water because he said he was a diabetic.

The householders were all elderly women, aged 68, 90 and 98, and although he didn't steal anything, police are urging residents to be wary. Detective Constable Mick Trodden said: "Luckily, he didn't get away with anything- on the third visit he managed to get inside the house, but does not appear to have stolen anything.

"It's possible he called at other houses in the area that evening. If anyone else had a visit from him we would like to know."

The caller is described as 16 to 19-years-old, of slim or skinny build, with fair hair and was clean-shaven. On two occasions he was bare-chested and he had several moles on his chest. Police have issued an e-fit, right, of the suspect, and are urging anyone with information to contact Bishop Auckland CID on 0845 60 60 365.

The Northern Echo launched its Doorstoppers campaign last year to highlight the problem of bogus callers.

Householders should always check a caller's identity and never let anyone in if they are unsure. When in doubt, ring the police.