<Table> <Tr> <Th_colspan="2"> 1992 Los Angeles riots </Th> </Tr> <Tr> <Td_colspan="2"> 2,000 California Army National Guardsmen patrolled the city to enforce the law . </Td> </Tr> <Tr> <Th> Date </Th> <Td> April 29--May 4, 1992 </Td> </Tr> <Tr> <Th> Location </Th> <Td> Los Angeles County, California, U.S. </Td> </Tr> <Tr> <Th> Caused by </Th> <Td> Reaction to acquittal of four policemen on trial in beating of Rodney King; death of Latasha Harlins </Td> </Tr> <Tr> <Th> Methods </Th> <Td> Widespread rioting, looting, assault, arson, protests, property damage, firefights, murder </Td> </Tr> <Tr> <Th_colspan="2"> Parties to the civil conflict </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> <P> Civilian groups: </P> <Ul> <Li> Rioters and looters primarily from the African American and Latino / Hispanic communities </Li> </Ul> </Td> <Td> <P> Law enforcement: </P> <Ul> <Li> Los Angeles Police Department </Li> </Ul> <P> Military groups: </P> <Ul> <Li> California Army National Guard </Li> <Li> 7th Infantry Division </Li> <Li> 1st Marine Division </Li> </Ul> </Td> <Td> <P> Vigilantes: </P> <Ul> <Li> Korean American merchants and vigilantes, combating rioters and looters </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> Casualties </Th> </Tr> <Tr> <Th> Death (s) </Th> <Td> 63 </Td> </Tr> <Tr> <Th> Injuries </Th> <Td> 2,383 </Td> </Tr> <Tr> <Th> Arrested </Th> <Td> 12,111 </Td> </Tr> </Table> <Tr> <Th_colspan="2"> 1992 Los Angeles riots </Th> </Tr>

What caused the los angeles riots in 1992