Australian Federal Police Commissioner Krissy Barrett emphasized the ideological beliefs of the suspects, a 50-year-old man and his 24-year-old son.

The two men opened fire on Sunday on Bondi Beach, Australia’s most popular resort, located in Sydney, during a Hanukkah celebration.

The father died during a confrontation with the police, while his son is hospitalized under police custody.

Australian authorities announced that Islamic State flags were found in the vehicle used by the attackers and seized by the police.

Australian media outlets describe the attack as the bloodiest in nearly 30 years in the country.

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