Several hundred protesters gathered outside the ICE facility Saturday afternoon and evening. Portland police declared it a riot.

In Portland, hundreds of demonstrators began assembling outside the Oregon Convention Center around 10 a.m. The crowd grew steadily, with many participants waving flags, banners and signs decrying the president and Immigration and Customs Enforcement.

Tense demonstrations outside the U.S. Immigration and Customs Enforcement building in Portland were declared a riot Saturday as federal officers once again faced off with protesters.