Nearly 600 protesters were arrested during a clangorous occupation of a U.S. Senate office building in Washington on Thursday, where they decried U.S. President Donald Trump¡¯s ¡°zero- tolerance¡± stance on illegal immigration.

The protesters, mostly women dressed in white, sat on the Hart Senate Office Building¡¯s marbled floors and wrapped themselves in metallic silver blankets similar to those given to migrant children separated from their families by U.S. immigration officials.

Their chant ¡°Say it loud, say it clear, immigrants are welcome here¡± echoed through the building, drawing scores of Senate staff to upper mezzanine floors from where they watched the commotion.