Mercedes driver Lewis Hamilton won the Spanish Grand Prix on Sunday by 20 seconds for his second straight Formula One victory, increasing his championship lead over Ferrari's Sebastian Vettel.

Valtteri Bottas secured a one-two for Mercedes at the Circuit de Barcelona-Catalunya, while Max Verstappen completed the podium despite finishing the race with a broken front wing on his Red Bull.

Vettel, who now trails Hamilton by 17 points in the drivers' standings, was only fourth after a slow pit stop.

Daniel Ricciardo was fifth with Red Bull, ahead of Kevin Magnussen of Haas and the Spanish duo of Carlos Sainz of Renault and Fernando Alonso of McLaren.

Charles Leclerc of Sauber and Sergio Perez of Force India closed out the top 10.