Shots have been fired in a western Sydney street before a car was found alight in a nearby suburb.

Shots were reportedly fired from one car into another on Victor Street in Greystanes about 12pm today.

Police arrived at the scene, but both cars had left.

Investigations are under way and members of the public are urged to avoid the area.

About 20 minutes later, Fire and Rescue NSW were called to a car fire next to a block of units on Targo Road in Girraween.

"When firefighters arrived, the car was well alight," FRNSW Adam Dewberry said.

"There's no information on how the fire started either."

Police are investigating whether the car fire is linked to the shooting.

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