PHILADELPHIA (CBS) – Police are looking for a suspect armed with a knife who attacked a woman early Friday morning in Spring Garden.

The incident happened at about 12:30 a.m. on the 1900 block of Green Street.

Authorities say the victim was going into her apartment building when she was attacked.  She put up a struggle and was able to get away from the suspect.

The suspect is described as a black male in his thirties, 5’11,” weighing 200 pounds.  He was wearing tan pants and a blue sweater.

Anyone with information should call 911 or 215-686-TIPS (8477).