At least 12 police officers have been injured after rioters hurled missiles, including fireworks, in chaos that ensued throughout the night. According to the South Wales police and crime commissioner, Alun Michael, the violence is believed to have been triggered by false rumours circulating on social media blaming police for the deaths of two teenagers in a crash nearby. Livestreams posted to YouTube showed crowds of young people in masks advancing towards riot police, setting cars alight and damaging properties on either side of the street. The commissioner told BBC Radio 4 the connection between the two incidents is far from clear and that an investigation would be held

Cardiff riots: social media rumours about crash started unrest, says police commissioner