NEW YORK (CBSNewYork) — Police are looking for a teenager wanted for allegedly assaulting a bus driver in the Bronx earlier this month.

The suspect punched the driver in the face without warning after boarding the BX21 bus at Ferris Place and Westchester Avenue around 9:45 p.m. on Aug. 15, police said.

READ MORE: Gov. Cuomo Says He Will Not Resign Amid Sexual Harassment Allegations: 'I Never Touched Anyone Inappropriately'

The teen then ran off the bus, police said.

The driver suffered cuts to his mouth, police said.

READ MORE: Road To Reopening: New York City Arts And Entertainment Venues Allowed To Reopen At 33% Capacity Beginning April 2

The suspect is believed to be between 15- and 18-years-old.

He was last seen wearing a grey hooded sweatshirt and dark colored jeans, police said.

MORE NEWS: Caught On Camera: Asian Man Brutally Beaten At Lower East Side Subway Station

Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS (8477). Tips can also be submitted to the Crime Stoppers website.