Fireworks were thrown at police and cars set alight after a huge riot broke out following a fatal crash. Emergency services were called out to a collision on Snowden Road, Ely, Cardiff, at roughly 6pm on Monday when hundreds of people started gathering at the scene.
Trouble started when young people set fire to rubbish and wheelie bins, with the situation soon escalating into a "large scale disorder" which continued for more than nine hours, South Wales Police said. Officers in riot gear had missiles and other debris thrown at them as they tried to keep the mob back, with several vehicles - including police cars - damaged by rioters.
Cops have since revealed that two teenagers were killed in a crash before the disorder. Alun Michael, the Police and Crime Commissioner in South Wales, said a fatal road accident appeared to have “sparked” the mass unrest.