In a tragic incident at Sydney’s Bondi Beach during a Hanukkah celebration, 15 people lost their lives in what has been identified as a mass shooting. Australia’s federal police commissioner, Krissy Barrett, confirmed on Tuesday that the attack was carried out by individuals inspired by the Islamic State.

The attack involved a father and son duo, aged 50 and 24. The father was killed during the incident, while the son is currently receiving medical care in a hospital.

During a news conference on Tuesday, leaders from both the political and law enforcement sectors disclosed their findings regarding the suspects’ motivations. Prime Minister Anthony Albanese indicated that their conclusions were drawn from evidence, including the discovery of Islamic State flags in the suspects’ vehicle.

In the aftermath of Sunday’s violent events, 25 individuals remain hospitalized, with 10 in critical condition. Among those, three are children receiving care in a pediatric hospital.

One of the survivors, a man who was caught on video, bravely tackled and disarmed one of the attackers. After disarming the assailant, he set the weapon aside, an act of courage captured in the footage.

Those killed ranged in age from 10 to 87 years old. They were attending a Hanukkah event at Australia’s most famous beach Sunday when the gunshots rang out.

Albanese and the leaders of some of Australia’s states have pledged to tighten the country’s already strict gun laws in what would be the most sweeping reforms since a shooter killed 35 people in Port Arthur, Tasmania in 1996. Mass shootings in Australia have since been rare.

Officials divulged more information as public questions and anger grew on the third day following the attack about how the suspects were able to plan and enact it and whether Australian Jews had been sufficiently protected from rising antisemitism.

Albanese announced plans to further restrict access to guns, in part because it emerged the older suspect had amassed his cache of six weapons legally.

“The suspected murderers, callous in how they allegedly coordinated their attack, appeared to have no regard for the age or ableness of their victims,” said Barrett. “It appears the alleged killers were interested only in a quest for a death tally.”

The suspects traveled to the Philippines last month, said Mal Lanyon, the Police Commissioner for New South Wales state. Their reasons for the trip and where in the Philippines they went would be probed by investigators, Lanyon said.

He also confirmed that a vehicle removed from the scene, registered to the younger suspect, contained improvised explosive devices.

“I also confirm that it contained two homemade ISIS flags,” Lanyon said.

This is a developing story.