Managerless Burnley began life without Sean Dyche with a 1-1 draw at West Ham after Clarets winger Maxwel Cornet had missed a first-half penalty at the London Stadium.
The relegation-threatened side, who sacked Dyche on Friday after a decade in charge, took the lead through Wout Weghorst (33), just three minutes after midfielder Ashley Westwood had been stretchered off following a serious injury that caused a lengthy delay.
Cornet then missed his penalty in stoppage time in the first-half after he was brought down by West Ham goalkeeper Lukasz Fabianski when through one-on-one.
The Ivorian was made to pay for his miss when Tomas Soucek equalised in the 74th minute after he shouldered in Manuel Lanzini's free-kick.
Burnley, under the temporary charge of Under-23 coach Mike Jackson, held on thanks to two great saves from goalkeeper Nick Pope.
The Englishman denied Issa Diop and Michail Antonio late on to ensure Burnley moved to within three points of safety behind 17th-placed Everton.
West Ham, meanwhile, missed the chance to go fifth and remain seventh, five points behind fourth-placed Tottenham, who have a game in hand on the Hammers.
More to follow...
What's next?
West Ham travel to Chelsea on Super Sunday at 2pm - live on Sky Sports Premier League - while Burnley host Southampton on Thursday at 7.45pm - live on Sky Sports Premier League.