Lower Merion police have reported two different incidents of fraud at Bryn Mawr bars in the past week.

About 11 a.m. Sunday, two men passed a total of four counterfeit $20 bills to pay for four $6 bottles of beer at Kelly's. Once the bartender became suspicious and held one of the bills up to a light, the men fled with their change, driving off in a silver minivan and running two red lights heading west on Lancaster Avenue, police said.

The men were both described as black, about 6 feet tall and stocky, about 40 years old with short hair and a thick African accent, police said.

The day before, about 1:30 a.m. Saturday, two 19-year-old Villanova students were charged with underage drinking and false identification after presenting fake IDs to the bouncer at The Grog, police said.