NYPD undercover pleads not guilty to gang assault in SUV driver attack in NYC

An undercover New York City police detective has pleaded not guilty to gang assault related to a motorcyclist-SUV highway melee.

Undercover detective Wojciech Braszczok (VOY'-chehk BRAZH'-ahk) appeared in Manhattan state Supreme Court Wednesday. He came to court with his hood over his head and a scarf covering his face.

Prosecutors have said Braszczok participated in the Sept. 29 attack by shattering the SUV's back window. He was off duty at the time. Defense attorney John Arlia (ahr-LEE'-ah) had no comment.

Investigators say the bikers converged on the SUV after the driver bumped a bike that slowed in front of him.

Police say the driver ran over a biker while trying to get away. They say the motorcyclists caught up with the driver and beat him.

The driver hasn't been charged.