PHILADELPHIA (WPVI) -- The search continues for a woman who is accused of attacking at least four people on SEPTA rides and city streets.
Police say all of the incidents were unprovoked, and on Tuesday night one of the victims came forward to speak about her frightening ordeal.
For the last week, a female suspect's photo has circulated among law enforcement after a brutal attack on a University of Pennsylvania student in Center City.
"As the clip went on, I saw her face and I went numb," said Samantha Retamar of Frankford. "I was like, 'That's her! She's the same exact lady who hit me!'"
Retamar said it happened on September 1 around 5:30 p.m. when she was on the Market Frankford Line between the Somerset and Allegheny stops.
"Out of nowhere, I just felt boom, punch to the left side of my face and I was just shocked. So I looked up and there was a woman standing there," said Retamar. "And she was cursing at me and screaming at me."
Retamar alleges the suspect tried to hit her again, and a good Samaritan intervened. She said the suspect then got off at Allegheny.
SEPTA police say officers stopped and identified a suspect but could not make an arrest under the Pennsylvania Rules of Criminal Procedure.
Retamar said she only suffered a mark on her face after the assault.
"What was nerve-wracking for me is she hit me in the eye," said Retamar. "I had a retinal detachment in that same eye several years ago so if I had got hit in that eye, she could have blinded me."
The suspect also allegedly assaulted another person on September 1.
SEPTA has submitted an affidavit for an arrest warrant for the suspect and is waiting for it to be approved by the district attorney.
"She definitely has to be suffering from some kind of mental illness and that's why the pictures of her have been disseminated through all patrol, so we really have been on the manhunt for her," said SEPTA Police Captain Rodger Walls.
A spokesperson for SEPTA said they recently received a tip about a second possible person of interest who could have committed some of the attacks. They say it's a top priority to positively identify the offender.