West Ham's resurgent form came to an end on Friday, as Glenn Murray struck to give Brighton and Hove Albion all three points.
Brighton and Hove Albion recorded their first Premier League win since August 19 on Friday as they overcame West Ham 1-0 on Friday.
Glenn Murray's sixth goal in seven appearances against the Hammers was enough to secure all three points for Chris Hughton's side and end a six-game run without a victory.
West Ham came into the game at the Amex Stadium on the back of an encouraging upturn in form, in which they have drawn with Chelsea, beaten Manchester United and put eight goals past Macclesfield Town in the EFL Cup.