Two alleged gunmen who attacked a Hanukkah event at Sydney's Bondi Beach had travelled to the Philippines before the assault, which killed 15 people, and appeared to be inspired by Islamic State, police said on Tuesday.

New South Wales Police said emergency services were called to Campbell Parade, the road that runs along Bondi Beach, just before 7 p.m. local time, to reports of a shooting.

Australian leaders have promised to immediately overhaul already-tough gun control laws after a mass shooting targeted a Hanukkah celebration on Sydney’s Bondi Beach.

GoFundMe has launched a centralised hub of verified fundraisers for victims of the Bondi Beach mass shooting, Australia's deadliest such attack in 30 years. Sixteen people were killed in the shooting, including one of the two gunmen, while over 40 more were injured.

Australian leaders promised Monday to immediately overhaul already-tough gun control laws after a mass shooting targeted a Hanukkah celebration on Sydney's Bondi Beach. At least 15 people died in the attack,

A mass shooting in which 15 people were killed during a Hanukkah celebration at Sydney's Bondi Beach was "a terrorist attack inspired by Islamic State," Australia's police said Tuesday.

Video appeared to show the bystander, named as fruit shop owner Ahmed al Ahmed, tackling and disarming one of the gunmen on Sunday.