Lewis Hamilton has hit back at Mario Andretti after the 1978 world champion accused him of being "militant" and "pretentious" in his stance against racism.
Andretti also said Hamilton was "creating a problem that doesn't exist".
Hamilton, the only Black driver in F1 history, has been vocal in his support of the Black Lives Matter movement and has criticised the sport for its "rushed" and disorganised anti-racism protest ahead of the Hungarian Grand Prix. The six-time world champion has called on Formula One and racing's governing body to take the lead on organising future protests.