Father-son gunmen Sajid and Naveed Akram travelled to the Philippines to receive "military-style training" in the month before they killed 15 people at a Hanukkah celebration at Bondi Beach, security sources have confirmed.

The alleged gunman lost his job several months ago. His family said he pretended he was on a fishing trip for the weekend.

Spending by Bondi shooters Sajid Akram and Naveed Akram in a Philippines terror hotspot should have been flagged by Australia’ financial monitoring system, industry sources say, with experts questioning how the men avoided raising the suspicion of intelligence agencies despite weeks on the ground.

Sajid and Naveed Akram returned to Sydney from Davao just around two weeks before the deadly mass shooting at Bondi Beach on December 14.

Australia is grieving as two gunmen, Sajid Akram and his son, Naveed Akram, opened fire during a Hanukkah celebration at Sydney’s Bondi Beach on Sunday (December 14), killing 15 people and injuring several others.

Naveed Akram, the surviving suspect in Sunday's mass shooting at Bondi Beach in Sydney, has been charged with 59 offences, including 15 counts of murder and one of committing a te

The 25-year-old accused of Australia’s deadliest terror attack regained consciousness only to find detectives waiting to arrest him at his bedside.

Before Sajid Akram was granted a gun licence, the domestic intelligence agency ASIO had warned NSW Police that his son, Naveed Akram, had been associating with Islamic extremists.