A French campaign group is urging the country's authorities to take action against homophobic and racist chanting by Paris Saint-Germain fans after the match against Marseille was marred by discriminatory singing.

Paris Saint-Germain remain on course for a historic unbeaten season in Ligue 1 after a 3-1 win over bitter rivals Olympique de Marseille in Le Classique on Sunday opened up a 19-point lead with 26 games played in France's top flight.

Paris St Germain took another big step towards the Ligue 1 crown with a 3-1 home win over second-placed Olympique de Marseille on Sunday to extend their lead at the top to 19 points.

Paris Saint-Germain concluded a perfect week on Sunday to move a step closer to a record-extending 13th French league title. PSG beat second-placed Marseille 3-1 to extend its lead at the top to 19 points with just eight rounds remaining.

PSG should have the title sewn up in the coming weeks, and Luis Enrique will just be hoping that they do not let up as they turn their attention to potential European glory

PSG host Olympique de Marseille in a Ligue 1 showdown on March 16. The Parisians currently have a comfortable lead atop the league table. They are unbeaten in the league, winning 20 and drawing five of their 25 matches.