Three second half Goals by Gunners gives Freddie Ljungberg his first win; West Ham 1 - 3 Arsenal
Arsenal came from a half-time losing position to win a Premier League away game for the first time since October 2011 (5-3 v Chelsea).
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Three quickfire second-half goals from Gabriel Martinelli, Nicolas Pepe and Pierre-Emerick Aubameyang earned Arsenal a 3-1 comeback victory against West Ham United to end their seven-match winless run.
West Ham took the lead on 38 minutes after Angelo Ogbonna's header from a Pablo Fornals cross took a slight deflection before beating Bernd Leno.
Martinelli equalised with his first Premier League goal on the hour.
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Arsenal substitute Sead Kolasinac, on for the injured Kieran Tierney, squared for the Brazilian to sweep the ball low past David Martin.
Pepe curled superbly into the top-left corner six minutes later to put the Gunners in front before Aubameyang volleyed in from Pepe's cross to make the score 3-1 after 69 minutes.
Freddie Ljungberg's first win as interim head coach moves Arsenal up to ninth on 22 points, six ahead of 16th-placed West Ham.
