Horrifying video shows a suspect pummeling a woman in the face and robbing her of her cell phone in Brooklyn.

The attacker walked up to the 30-year-old victim near Avenue W and Lake Street in Gravesend around 1 a.m., Oct. 2, repeatedly slugged the victim, snatched her Samsung Galaxy cell phone and fled, police said.

The victim suffered bruises to her face, back and knees. Police released a sketch of the assailant who they believe is in his early 20s, about 5-foot9 and thin.

The video was obtained by WABC-TV.