PSG, which announced contract extensions for coach Luis Enrique and players Achraf Hakimi, Nuno Mendes and Vitinha before the match, secured a 16th win in 21 league games to reach 53 points, 13 ahead of second-placed Marseille, which has a game in hand.

Vitinha celebrated his new deal with the opener after just six minutes, sending a low free-kick inside the near post, but Denis Zakaria equalised for Monaco by scoring from a tight angle after Soungoutou Magassa's fine throughball in the 17th minute.

While both sides had chances to grab the lead before half-time, it was PSG's new signing Kvaratskhelia that restored their advantage, brilliantly cutting inside a defender in the box before blasting home nine minutes after half-time.

Ligue 1's leading scorer Dembele extended the advantage three minutes later after a one-two with Desire Doue, and the 27-year-old winger sealed the rout in stoppage time with his 16th league goal of the season.

The French champion next plays at fellow Ligue 1 outfit Brest in the first leg of a UEFA Champions League knockout-stage play-off tie next week.