From Seattle to Austin to Washington, D.C., marchers have chanted slogans, carried signs and snarled traffic through downtown avenues and outside federal offices.

The protests began Friday after Immigration and Customs Enforcement agents carried out coordinated raids across Los Angeles, detaining dozens of workers at warehouses and other worksites. The arrests sparked immediate backlash, with demonstrators converging outside federal buildings, blocking freeways, and in some cases clashing with police.

6:30 p.m.: More than 100 people gathered at the immigration services building and detention center in downtown Los Angeles to protest the raids. DHS officers fired pepper balls at the protesters before the Los Angeles Police Department dispersed the crowd.