NEW YORK (CBSNewYork) — A sex assault suspect is being sought after police said he threatened a young woman before raping her in a Brooklyn back alley.

The suspect approached the 18-year-old woman in Bedford-Stuyvesant, where he displayed a hammer, threatened to hit her and demanded oral sex, police said.

The man then forced the victim to a back alley, where he raped her and fled the scene, according to police.

The victim was taken to Woodhull Hospital.

Police describe the suspect as being a black man, 20 to 22 years old, 5’8” and 150 pounds.

The suspect has a light complexion and was last seen wearing what cops call a “black rich young cap,” along with a hoodie, dark jeans dark jean jacket, sneakers that were red, white and black, a North Face black backpack and black framed glasses, authorities said.

Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS (8477). The public can also submit their tips by logging onto the Crime Stoppers website at WWW.NYPDCRIMESTOPPERS.COM or by texting their tips to 274637 (CRIMES) then enter TIP577.

All call are strictly confidential.

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