By Jorge Garcia and Arafat Barbakh LOS ANGELES (Reuters) -California National Guard troops were deployed to the streets of Los Angeles on Sunday to help quell a third day of protests over President Donald Trump's immigration enforcement,

Many protesters dispersed as evening fell and police declared an unlawful assembly, a precursor to officers moving in and making arrests of people who don’t leave. Some of those remaining threw objects at police from behind a makeshift barrier that spanned the width of a street and others hurled chunks of concrete,