About 12.15am two males drove to a fast food outlet in Showground Road, Castle Hill, where they noticed several men near a brown Honda Accord.

The groups argued and a fight ensued.

The two men returned to their vehicle and drove away along Barwell Avenue.

Police allege one of the men involved in the fight fired a handgun from Barwell Avenue at the pair as they drove away.

The shots struck the car but no-one was injured.

The duo went to Castle Hill Police Station and reported the incident.

A crime scene was established and a canvass of the area was conducted.

Inquiries into the incident are continuing and police are appealing for public assistance to locate the brown Honda Accord, with NSW registration plates YUT 999.

Anyone with information about the incident or the Honda is urged to contact Castle Hill Police on 9680 5399 or Crime Stoppers on 1800 333 000.