Authorities in Sydney are investigating a suspected link between a shooting in the city’s western region last night and a subsequent series of violent events, including another shooting along with a car and house fire.

In the early hours, around 12:45 a.m., a residence and a white Toyota station wagon on Wendy Close in Cabramatta became targets of arson and gunfire.

Firefighters managed to extinguish the flames, but not before both the house and vehicle suffered extensive damage.

Witnesses reported hearing several gunshots, after which a dark-colored sedan was seen speeding away from the scene.

“The sound of gunshots terrified me,” a local resident recounted. “I observed a person in black tracksuit pants emerge from a black car to start the fire. They quickly returned to the car and drove off.”

“I saw a black car, someone got out with black tracksuit pants and started the fire, and then they got back in the car and took off again.”

They found bullet casings at the location after at least five shots were fired at the home.

A 57-year-old woman and her three sons – all in their 20s – were inside the home.

The woman was treated for smoke inhalation at the scene.

The three sons were unharmed.

About 20 minutes later, a second shooting occurred in a suburb in Sydney’s west.

Police say several bullets were fired at a home in Green Valley at around 1am before a car was set alight.