Important outside three points for Southampton and Brighton remain without home win this season
Brighton’s men had started with great enthusiasm and Pascal Gross put them in the lead from penalty spot after James Ward-Prowse was penalised for handball.
Southampton scored at a vital time just before the break when Jannik Vestergaard brilliantly headed Ward-Prowse’s corner.
With the game at 1-1, Kyle Walker-Peters was fouled by Solly March right on the edge of the penality area which was awarded as a free-kick until VAR intervened to show that the foul had occurred in the box.
Ings made no mistake from the spot as the returning 2,000 home fans unloaded their frustration at VAR’s intervention.
The win ranks Southampton into fifth place in the Premier League and they have now won 10 of their last 17 matches outside St Mary’s Stadium.