More than 100 people were arrested on Monday night in Los Angeles, as "fringe groups" continued late-night protests, City of Los Angeles Mayor Karen Bass said.

Protesters filled plazas, streets and parks across the country on Saturday, mounting a mass mobilization that called for protecting American democracy from a president that many opponents accused of overreaching the powers of his office.

A day of opposition to Donald Trump brought out protesters in hundreds of cities across the US on Saturday, creating a split-screen contrast with a military parade in Washington promoted by the president.