The 2011 Hectorville siege took place between the hours of 2:30 a.m. and 10:30 a.m. on Friday, 29 April 2011, at the small suburb of Hectorville, east of Adelaide in the state of South Australia, Australia. It began after a 39-year-old resident of the suburb, later identified as Donato Anthony Corbo, entered his neighbours' property and shot four people, killing three and severely wounding one. An eight-hour stand-off with police followed, during which time he shot and wounded two officers. The stand-off culminated in his arrest by members of the Special Tasks and Rescue unit of South Australia Police.