A man approached the women about 11:15 p.m. and demanded money from them, police spokesman Sgt. Mike Pattrick said. He did not display a weapon, Pattrick said.
The women turned over an undetermined amount of money, and the suspect fled the area on foot.
The suspect was described as a black man in his 30s. He is about 6 feet, 2 inches tall and weighs about 260 pounds, Pattrick said. He had black hair and was wearing a gray t-shirt and denim pants.
Police are continuing to investigate.