GREENLAWN, N.Y. (CBSNewYork) – A Long Island church is looking for a pair of Grinches who stole someone’s purse during Christmas Eve mass.

The duo was caught on camera swiping a woman’s purse as people got up to receive holy communion at St. Francis of Assisi in Greenlawn on Dec. 24.

The suspects were seen walking down the pews before one of the women grabs the purse and leaves the church – hiding the stolen bag under a jacket.

Father Peter Kaczmarek is spreading the word of the un-Christian act on one of the Church’s holiest days.

“They did not attend the mass,” he said. “They came in late, they cased the joint quickly.”

Social media sleuths have taken to trying to decipher the back of one of the women’s jackets, and have speculated the duo is a mother-daughter team.

“If they had come and asked for help we probably would have been able to have done something for them,” Father Peter said.

Suffolk County police said credit cards that were inside the stolen purse have already been used by the thieves at a nearby CVS.

CBS2 reached out to the victim whose purse was stolen, who declined to comment.

Anyone with information about the purse snatchers is asked to call Suffolk Crime Stoppers at 1-800-220-TIPS.