A woman was sexually harassed and assaulted with a mallet at an Upper East Side subway station this week.

Police say the incident happened around 9:30 p.m. on Tuesday. The victim, Alexis Gonzalez, told the NY Post she was buying a MetroCard when a man and his girlfriend got angry with her for unknown reasons. "I heard the man saying sexual slurs about me and my friend. He said to the female he was standing with ‘which one do you want?'" she told the Post.

The man's companion became enraged, threatening to "fuck her up." Gonzalez says she and a friend tried to quickly walk away, but the woman followed her: "She followed us down the stairs and now we’re all on the platform, I was afraid she was going to try to push me into the train," Gonzalez told the Post. "She spit at me again and this time it landed on my chest."

Then the woman allegedly took out a rubber mallet out of her purse and hit her over the head. "She hit me with all her might, I ended up having a one-inch laceration and needed to get two staples to close it up," she said.

Gonzalez got on the train, but soon realized she was bleeding from the back of her head. "I told my friend to touch the back of my head because it had started to swell and I had a huge knot," she explained. "Her hand was covered in blood and I realized blood was dripping all down my back… I started to panic because I realized I was really hurt."

She got off at the Lexington Avenue/51st Street stop and was transported to Metropolitan Hospital Center for treatment. Police describe the suspect as a woman in her mid-20s, about 5-feet-8-inches and 135 pounds.