Barcelona were confirmed league champions as they dominated proceedings.
The players were celebrating their title win as fans entered the field of play.
They then made a dash for the tunnel with some supporters carrying weapons.
Barcelona won their 27th league title with a 4-2 win over neighbours Espanyol but were chased down the tunnel by an Espanyol pitch invasion.
Xavi’s players linked hands and bounced around the centre-circle after winning what was a demolition derby but angry Espanyol supporters then broke a non-existent security cordon and headed towards the champions who made their way quickly into the dressing room.
Security initially tried to block the fans, but there were too many and they made their ways towards the players in their numbers, some yielding weapons as they took unkindly to their rivals celebrating on their pitch.
Some ultras made their ways down the tunnel and were confronted by Barca players including Sergio Busquets and Marcos Alonso, while others turned their attention to the board, with the club on the verge of relegation.
It’s not believed any players were harmed, though the quick exit from the pitch was provided a shock and a dampener to the club’s celebrations for winning LaLiga.
