By Xinhua,
Canberra : A pipe bomb and more than eight bullet casings were recovered from a northern Sydney housing estate after an explosion, police said on Tuesday.
Emergency crews were called to the spot after a resident reported what sounded like gunshots.
Police later confirmed some of the noise came from a pipe bomb explosion underneath a car parked in the estate.
A second pipe bomb, undecorated, was found underneath the black Jeep Cherokee and was safely removed by technicians.
Detective Inspector Peter Yeomans told reporters over eight bullet casings were also found at the scene.
The attack was apparently intended to harm people and did not appear to be random or a scare tactic, according to Australian Associated Press report.
Police were still investigating and as yet no arrests have been made.