Rioters fired shots, hurled rocks and set buildings alight during violent clashes after a police officer shot and killed an armed man in the US city of Milwaukee. City leaders appealed for calm after a mob of around 100 people took to the streets following the deadly shooting.
One officer was hit in the head by a brick thrown through a police car window, while a petrol station was set on fire. An empty police vehicle was also targeted by arsonists. Authorities said firefighters were initially unable to tackle the blazes because of gunfire. Read more