Police are reminding residents in East Sussex to be on the alert for unwanted and bogus callers.
The warning came after three men called on an elderly lady in Pevensey, at about midday on Wednesday (9 May) saying they were from the 'River Board' and needed to check her tap water for possible contamination.
They were in the house for several minutes, attempting to distract her with various requests to fill up receptacles as they were about to turn the water supply off, but she became suspicious of them and they eventually left, empty-handed.
Investigator Bernadette Peters said: "This was a clear attempt to distract the lady and steal from her, probably cash, but they must have realised that she suspected them, and cut their losses by leaving.
"But we are warning other residents to look out for this trio, or for any similar attempts.
"Don't let cold callers of any kind into your home. Keep them out and tell us if you think they may be planning to steal. Ring 101 or 999. You can also contact us if you recognise the descriptions of these men.
All the suspects are described as white.
One was in his late twenties, wearing slim fitting black trousers, a black V-neck jumper, a black peaked baseball style cap, a mauve lanyard and grey gardening-style gloves with a blue zig-zag style pattern down to the fingers.
The second man was in his 40's, 6' with thick dark brown hair, clean shaven, wearing a dark suit with a thick black outer jacket and thick trousers which looked out of place as it was such a warm day.
The third man was aged about 18, of stocky build with thick dark brown hair similar to the second man and possibly related.
Help us keep Sussex safe
Seen something suspicious or have information about a crime or incident? Please contact us online, email us at email@example.com or call 101.
Alternatively you can contact the independent charity Crimestoppers, anonymously, on 0800 555 111, or online at www.crimestoppers-uk.org
Stay in the know with social media