Australian police have concluded that the two gunmen responsible for the Bondi Beach mass shooting acted alone and were not part of a wider terrorist network.

Axar.az, citing The Telegraph, reports that investigations, including inquiries in the Philippines, found no evidence that Sajid Akram and his son Naveed Akram belonged to or were directed by a broader terrorist cell, nor that they received formal training during a trip to Mindanao.

The father and son are accused of killing 15 people during a Hanukkah event on December 14, marking Australia’s worst mass shooting in nearly 30 years. Sajid Akram was shot dead by police at the scene, while Naveed Akram survived and now faces 59 charges, including 15 counts of murder.

Authorities say the pair were allegedly inspired by Islamic State ideology.

The attack has deeply shocked Australia, prompted further reforms to already strict gun laws, and led to heightened security nationwide. Sydney’s New Year’s Eve celebrations will see the largest police deployment in the city’s history, with more than 2,500 officers on duty, some carrying automatic rifles. Victims will be honored with a minute of silence and a menorah projection on the Sydney Harbour Bridge.