Police in Nottinghamshire are warning people to be on alert for criminals using icy weather conditions as a cover to commit burglaries.
It comes after an 85-year-old woman was the victim of a distraction burglary when a man came to her Aspley home claiming to be from the water board.
She was told her next-door neighbour had been flooded, and he needed to check her pipes.
While inside the house he stole a quantity of cash from her bedroom.
The man is described as white, in his 30s, about 6ft tall and of medium build.
Police said they were also trying to trace a dark blue or black Fiat Bravo that was seen in the Minver Crescent area at the time of the offence.
Insp Steve Payne, of Nottinghamshire Police, said: "Councils or the water board won't send a representative to your address without contacting you first to make an appointment, so always check before letting someone into your home.
"If someone does come to your door, get their personal details and the registration of any vehicle they are travelling in before you let them in and check with the organisation they claim to be working for."