Boris Johnson has called on England fans to get behind the national team and not boo players who take the knee in protest at racial injustices.
Downing Street said the prime minister “respects the right of all people to peacefully protest”.
A spokesman added: “The prime minister wants to see everyone getting behind the team to cheer them on and not boo.”
Earlier former prime minister Gordon Brown said it was time for Mr Johnson to offer public and unequivocal backing for the England players’ protest.
Fans have booed players taking the knee before recent England games and the controversy threatened to mar the start of the team’s campaign to win the Euro2020 competition, which begins tonight.