A home-made bomb that was planted next to a car in the driveway of a home on the New South Wales central coast was a "nasty bit of gear" that had the potential to cause significant damage, police say.
Two bullets also were fired at the house on Schnapper Road in Ettalong Beach shortly before a small vehicle was seen speeding from the area with its headlights turned off in the early hours of Sunday morning.
Police from the Brisbane Water local area command were still searching for a motive for the shooting and attempted bombing, but they said there were no suggested links to a series of recent shootings in Sydney linked to outlaw motorcycle gangs.
Police were called to the home at 5am on Sunday (local time) after reports of a drive-by shooting. They arrived to find two bullets had struck the garage door of the home.
Inspector George Bradbury, from Gosford Police, said a woman and her adult son lived at the address, but they were not injured.
After finding the "improvised explosive device" police evacuated the area and called in bomb squad officers from Newcastle, who examined the bomb and made it safe.
Inspector Bradbury said the device had the potential to cause significant harm.
"I'd hate to have been standing next to it. It was a nasty bit of gear," he said.
Police have seized the bomb and will forensically examine it for clues.
Inspector Bradbury said the incident was not believed to be linked to a series of recent shootings, including two fatal, involving members of outlaw motorcycle gangs across Sydney.
"The investigators are still trying to work out why it occurred, why that house. We simply don't have the answer to that at this stage," he said.
Detectives have been told a small, light-coloured vehicle was seen speeding along nearby Flounder Road without its headlights on moments after the shooting.
- Sydney Morning Herald