Police have released more surveillance images of the man who allegedly tried to sexually assault a 19-year-old woman.

The incident occurred around 1:30 a.m. on the 1300 block of Wharton Street on April 20.

The victim, a 19-year-old woman, "was approached from behind by an unknown male who forced her to the ground," a police report states. "While forcing the female to the ground the male was able to pull the top of the female dress down exposing her breast."

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However, the woman had pepper spray and was able to defend herself, chasing the attempted rapist off.

"During the struggle the female was able to mace the male in the face who then fled," police said.

The suspect is described as "37-years-old, 5’7, 225 lbs, medium build, wearing a black hooded sweatshirt and black pants."

Police are asking tipsters to call the Special Victims Unit at 215-685-3251/52 or 911.