WASHINGTON -- U.S. President Donald Trump is renewing his complaints about NFL players who kneel during the national anthem.

Players have been kneeling to protest racism and police brutality, particularly toward people of colour. Trump says the act is disrespectful and is hurting the game.

Trump tweeted Tuesday that at least 24 players kneeled during weekend play at stadiums that he says are having a hard time filling with fans.

The president says: ""

Trump has branded the league as "weak" for not requiring players to stand during "The Star-Spangled Banner."