Householders in Derbyshire are being told to watch out for bogus callers after three houses were burgled within a matter of hours.
Three men claiming to be from the water board tricked their way into homes in Ashbourne, Osmaston and Darley Dale.
In one case, a large amount of cash was stolen. The men are described as white, one in his mid 40s and the other two in their 20s.
They were seen driving a Ford Mondeo car and later spotted in a 4x4.
Inspector Tony Dales from Derbyshire Police said: "People who come into the area for distraction burglaries are quite well organised.
"Yesterday (Tuesday) we've got evidence that vehicles were changed during the day.