Second-half goals from Kevin De Bruyne, Phil Foden and Riyad Mahrez helped send Manchester City through to the FA Cup semifinals with a 4-1 victory over Southampton on Sunday.

Raheem Sterling got City off to a perfect start at St. Mary's, handing the visitors an early lead on 12 minutes with a calmly taken finish. But Southampton found a way back into the game on the stroke of half-time thanks to an own goal from City defender Aymeric Laporte.

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Pep Guardiola's side characteristically dominated possession in the second half and went back ahead when striker Gabriel Jesus went down in the Southampton box after a nudge in the back from Mohammed Salisu, with De Bruyne scoring the ensuing penalty.

City added a third on 75 minutes through Foden, who collected the ball after a blocked shot from De Bruyne before firing past goalkeeper Fraser Forster, and Mahrez capped a convincing win with a strike of his own shortly after.

The result means City remain active in two cup competitions -- the Champions League and FA Cup -- as well as leading the Premier League heading into the business end of the season.