The father and son, who authorities say were inspired by ISIS, spent nearly a month holed up in a budget hotel in an area of the country that has been seen as a hot spot for extremism.

A man resembling Bondi gunman Naveed Akram has been captured on CCTV in Davao City in mid-November, as authorities continue to investigate the movements of him and his father, Sajid Akram, in the lead-up to the attack.

THE monsters behind the horrific Bondi Beach massacre spent the month before the slaughter in the Philippines – a chilling reminder that the country remains a hotbed for training terrorist

The attack was Australia's worst mass shooting in nearly 30 years, and is being investigated as an act of terrorism targeting the Jewish community.

The south of the country was long a hotbed of radicalism, but years of military campaigns have pushed extremists to the fringes.