Australian authorities say the mass shooting that killed 15 people during a Hanukkah celebration at Sydney’s Bondi Beach was a terrorist attack inspired by the Islamic State group. Federal Police Commissioner Krissy Barrett confirmed the assessment Tuesday, citing evidence including ISIS flags and improvised explosive devices found in a vehicle linked to the suspects, a father and son aged 50 and 24. The older man, identified as Sajid Akram, was shot dead at the scene, while his son remains hospitalized. Prime Minister Anthony Albanese said the conclusions were based on intelligence gathered since the attack, which left victims aged between 10 and 87 and at least 25 people injured, including children. Authorities are investigating the suspects’ recent trip to the Philippines and how the weapons were obtained, as national leaders renew calls to further tighten Australia’s gun laws. As the country mourns, acts of bravery have drawn praise, including a bystander who disarmed an attacker and lifeguards who rushed toward danger, while a surge of Australians have lined up in record numbers to donate blood.