Investigators said they were also looking into a trip to the Philippines that the father-and-son attackers took last month.

The suspects were a father and son, aged 50 and 24, authorities have said. The older man, whom state officials named as Sajid Akram, was shot dead. His son was being treated at a hospital.

The suspected gunmen who attacked a Jewish gathering on Bondi Beach were of Indian heritage and inspired by ISIS, officials say.

A former Australian Federal Police Detective Superintendent has raised serious concerns about whether warning signs were missed in the lead-up to the Bondi Beach terror attack that left 16 people dead.

Police officials have determined that the deadly mass shooting at a Hanukkah celebration on Bondi Beach was “a terrorist attack inspired by Islamic State ," the Associated Press (AP) reported Krissy Barrett, Australia ’s federal police commissioner, made the announcement during a press conference Tuesday.

At least 15 people are dead after a mass shooting at Australia’s famous Bondi Beach on Sunday. Follow live updates.

One of the gunmen, 50-year-old Sajid Akram, was fatally shot by police during the attack. The second shooter, his 24-year-old son Naveed Akram, was wounded and is currently undergoing treatment at a hospital, New South Wales Police Commissioner Mal Lanyon confirmed.

A father and son, aged 50 and 24, are suspected of killing at least 15 people, ranging in age from 10 to 87, and injuring 38.

The two men who killed 15 people on Sunday were driven by “Islamic State ideology,” Prime Minister Anthony Albanese told Australia’s public broadcaster.