One of two men suspected of carrying out Australia's deadliest mass shooting in three decades will be charged later on Wednesday, Prime Minister Anthony Albanese said, as the funerals of the Jewish victims of Sunday's attack began.

Australia's prime minister said the suspects in the shooting at the Hanukkah event were “motivated by Islamic State ideology.” They had traveled to the Philippines before the attack, officials said.

A bystander who wrestled a gun from one of the alleged attackers during a mass shooting at Bondi Beach has been identified as Ahmed al Ahmed, whose refugee parents had just arrived from Syria, according to Australian officials and media.

The victims of a mass shooting at Sydney's Bondi Beach range from a 10-year-old girl with a gentle soul to an 87-year-old Holocaust survivor.

Australian officials say the Bondi Beach gunmen carried bombs, ISIS flags and had recently traveled to the Philippines, confirming the massacre was ISIS-inspired.

Hundreds of mourners gathered in a Bondi synagogue for the funeral of Rabbi Eli Schlanger on Wednesday, a few blocks away from the beach where he was gunned down, one of the first of many services for the Hanukkah festival shooting victims.

Flowers with a note that read "The Bondi Hero" are left outside tobacco shop owned by Ahmed al Ahmed, the bystander who is hailed as the "Bondi hero" after he charged at one of the gunmen and seized his rifle during the deadly shooting at Bondi Beach,