Sri Lanka, Dec. 21 -- Australia's Prime Minister Anthony Albanese has announced a review into the police and national intelligence agencies after last weekend's Bondi Beach attack.

"The ISIS-inspired atrocity last Sunday reinforces the rapidly changing security environment in our nation," Albanese said, using an acronym for the Islamic State group. "Our security agencies must be in the best position to respond."

A national day of reflection was being held on Sunday to mourn the 15 people killed after two gunmen opened fire at a Jewish festival at the Sydney beach.

Amid tight security, a minute of silence will be observed at 18:47pm local time (07:47 GMT), marking exactly a week since the shooting began.

Police allege the attack on Dec...