Southampton and West Brom fans appeared to throw missiles at each other as the Saints celebrated booking their places in the Championship play-off final.<br /><br />Russell Martin's side dominated the second leg clash at St Mary's on Friday evening, winning 3-1 on the night and aggregate thanks to a Will Smallbone strike and brace from Adam Armstrong.<br /><br />They will take on Leeds at Wembley next weekend as both sides aim for an immediate return to the Premier League following relegation last season.<br /><br />After the full-time whistle, hundreds of home fans invaded the pitch to celebrate their side reaching the final and appeared to goad away supporters before scenes turned ugly.<br /><br />Footage from social media seemed to show a missile being thrown into a crowd on the pitch from what looked to be the away end, with a supporter throwing another into the stands.<br /><br />It is unclear whether it was the same missile thrown in response.<br /><br />Other footage showed stewards and police holding back Southampton fans from getting to the away end, with chants of 'Albion' heart in videos shared online.<br /><br />In photos, fans from the away end could be seen trying to get onto the pitch.<br /><br />It was a delayed pitch invasion, with Southampton's squad initially congratulating each other after managers Russell Martin and Carlos Corberan shook hands.<br /><br />Smallbone was all smiles as he went from the substitutes' bench to the pitch before the first set of fans entered the field.<br /><br />More began to make their way onto the field of play, with supporters holding flags in the air and a flare also seen on the pitch.<br /><br />The home supporters appeared to goad the away end full of fans who will again have to watch their team in Championship action next season. <br /><br />Both Southampton and West Brom have been contacted for comment.<br /><br />In the game, West Brom started well, deploying a low block to resist the possession-based play from the hosts.<br /><br />Initially, the plan was working, with the score 0-0 at half time mirroring the score line from last week's first leg at the Hawthorns.<br /><br />Smallbone opened the scoring in the 49th minute, however, meaning the visitors had to score if they were to at least take the game to extra time.<br /><br />Armstrong scored his brace to take the game away from West Brom, with Cedric Kirpe's goal deep into stoppage time in vain.
