The mayor said the curfew will run from 8 p.m. to 6 a.m. local time, and cover roughly a square mile of downtown. She said she expects it to last several days.

The curfew is now in effect in downtown Los Angeles. Many streets across the area are quiet, but there are still many protesters who have lingered in the area. The police have used so-called less lethal munitions and chemical irritants at times in an effort to disperse protesters. Here’s what else to know: