CCTV has been released of a man allegedly throwing a “homemade” nail bomb at a crowd in Australia, just one month after 15 people were shot dead on Bondi Beach. Police allege a 31-year-old Warwick man was at an Invasion Day rally in Perth's Central Business District when he threw an item from a first-floor walkway and into a crowd of 2,500 people before fleeing the scene on Monday (26 January). A member of the public alerted officers, and a suspect was taken into custody soon after. Police said the bomb was a “homemade improvised explosive device containing a mixture of volatile and potentially explosive chemicals, with nails and metal ball bearings affixed to the exterior,” but it failed to detonate. The 31 year old will appear at Perth Magistrates Court on 17 February for a bail application.