At least ten people are dead in one of the worst mass shootings in Australia's modern history.

Two men are in custody after gunmen opened fire on beachgoers at Bondi Beach with high-powered weapons on Sunday evening. Multiple people were injured, including children.

Police are investigating reports of an improvised bomb at the scene.

NSW Police are urging the public to avoid the area. 

More to come. 

See omnystudio.com/listener for privacy information.