PHILADELPHIA (CBS) – Philadelphia Police are warning residents of a frightening scam involving burglars posing as utility workers. Authorities say the latest target was an elderly couple in Bustleton.

It happened at 2 p.m. on Tuesday on the 1000 block of Chesworth Road.

Police say the posers, who were dressed as PGW workers, knocked on the door knowing exactly what to do and say. They even showed identification.

According to police, one of the men told the elderly home owner there was a water main break in the neighborhood and he needed to check his pipes. While one of the men went to the basement in order to create a distraction, police say, the second man went upstairs and took about $2,000 in cash, money the elderly couple planned to spend on their grandchildren for Christmas.

“They are the nicest people, they’d do anything for you,” said neighbor Sue Smith.

“I just don’t trust anybody,” said neighbor Kelly Mulqueen. “I hear about enough of it and I just don’t open my door.”

Authorities say the thieves also got away with four diamond necklaces and a firefighters ring which was a family heirloom.

Police say the suspects have been targeting the elderly and hope residents take precaution before they let anyone into their home.

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