Perth plaza evacuated after device thrown into crowd

A man was arrested after allegedly throwing a device into a crowd at a Perth rally; police say the device did not detonate and no injuries were reported.

A man was detained after a device was thrown into a crowd in a pedestrian square in Perth during a rally on Australia Day. The gathering was a rally supporting Indigenous rights, often referred to as Invasion Day. Authorities said the device did not explode and there were no reported injuries. Known details: - A 31-year-old man was arrested at the scene and remains in custody. - Police said the device did not detonate and no injuries were reported. - Forensic teams are examining the device and investigators are identifying its contents. - Officials said they do not believe there is any ongoing threat to the community and noted the national terror threat level is currently described as "probable". Summary: The incident prompted the evacuation of the plaza and disrupted the rally, and state leaders described the event as completely unacceptable. Investigations and forensic testing are under way. Undetermined at this time.