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.

A 10-year-old, a Holocaust survivor and a young French national were among at least 15 people killed when two gunmen opened fire on families celebrating the first night of Hanukkah at Sydney’s famed Bondi Beach on Sunday,

A Holocaust survivor and a 10-year-old girl are among the at least 15 people killed during the terror attack in Sydney.

Australia's prime minister said Monday that the suspects in the shooting at the Hanukkah event were “clearly” motivated by extremist ideology.

"Our hearts go out to the victims and their surviving families who are now dealing with unfathomable loss and heartbreak," wrote Garbage on Instagram

Here's what we know about the mass shooting that left at least 15 people dead. And, authorities found director Rob Reiner and his wife, Michele, dead in their Los Angeles home.

Police and local media reports said the shooting began while some people were attending a Hanukkah party on the beach. At least 40 people were hospitalized.

"Please say Psalms 20 & 21 for my son, Rabbi Leibel Lazaroff, who was shot in a terrorist attack at a Chanukah event he was running for Chabad of Bondi in Sydney, Australia," Yossi Lazaroff wrote Sunday. "The Chabad Rabbi he was working with Rabbi Eli Schlanger was killed. Praying for all the victims and their families."