Police are asking for the public’s help in identifying a man who they say stole a woman’s cellphone during a violent robbery in Clinton Hill.

Investigators say the 22-year-old victim was approached by the suspect near 275 Classon Ave. on Wednesday afternoon.

The man repeatedly punched her in the face before taking her phone.

When a 35-year-old witness attempted to intervene, he punched her in the face as well.

Police urge anyone with additional information to call 1-800-577-TIPS.