Since Thursday, nearly 1,400 people have been arrested in 17 cities in the United States amid ongoing protests over the killing of George Floyd, according to local media reports.

A total of 25 cities in 16 states have imposed curfews, including Chicago, Seattle, Los Angeles and Miami.

U.S. President Donald Trump commented on latest unrest on Twitter, saying "the National Guard has been released in Minneapolis to do the job that the Democrat Mayor couldn't do. Should have been used 2 days ago."

Trump also praised the National Guard in the tweet. "Great job by the National Guard. No games!" he wrote.