[JURIST] The International Committee of the Red Cross [advocacy website] has urged the US to investigate a riot that broke out Friday [JURIST report] at the Camp Bucca prison camp in southern Iraq. Twelve Iraqi prisoners and four US guards were injured when prisoners began throwing rocks at guards and set several tents on fire, according to the US military. ICRC reports said 14 prisoners were wounded when guards fired rubber bullets to control the riot. The US military did not acknowledge the riot initially, until reports surfaced from Shiite cleric Moqtada Sadr and the ICRC. A riot left four prisoners dead earlier this year [JURIST report] at Camp Bucca, the largest US-run prison camp in the country with more than 6,000 prisoners. AFP has more.