Amherst Police say they've struck several times in just one day.
"We heard another incident today from the Town of Amherst," said Mathew Baudo from the Erie County Water Authority.
Police report that Thursday afternoon three suspects showed up to a Williamsville home displaying some sort of badge claiming to be Erie County Water Authority workers.
The elderly woman allowed them inside and while one suspect distracted her the others robbed her and got away with the woman's jewelery from her bedroom.
Baudo says he isn't surprised because it's a scam they hear about every year.
After hitting the Williamsville home the crooks pulled the same trick in the towns of Cheektowaga and Clarence later that day.
These most recent incidents prompting the authority to issue a warning to residents.
Workers from the Authority will always have a water authority identification card with a signature, a shirt, and jacket all with the same Erie County Water Authority logo as on the vehicles they drive to your home.
When in doubt you can always call the water authority during normal business hours at 716-849-8484 or contact the emergency dispatch center after hours at 716- 685-8235.