Philadelphia police are on the hunt for a motorcyclist who attacked a driver while two children were in her car over the weekend.

Newly released images capture the suspect’s face with his helmet resting on top of his head. The incident occurred near City Hall around 9:40 p.m. on Sunday when the biker, part of a group of ATV and dirt bike riders, climbed onto a car and smashed its rear window with his feet.

The driver, Nikki Bullock, was delivering for Uber Eats with her girlfriend and their 5-year-old daughter and 2-year-old son when the altercation began. She had been sideswiped by the biker, leading to a heated exchange. When the biker jumped onto her car and pointed a black handgun at her, Bullock got out of the car to confront him.

Fortunately, no one was injured, but Bullock was left shaken by the ordeal. She filed a police report and spoke with a detective about the incident.

District Attorney Larry Krasner condemned the biker’s behavior, pledging to vigorously pursue charges if the suspect is apprehended. He also emphasized the dangers of such reckless riding, urging those involved to consider the risks they pose to others.

The police are actively seeking the person of interest, whose identity has not been publicly disclosed.