Ajax fans were caught on camera vandalising the Friends Arena in Stockholm after their Europa League final defeat to Manchester United last night.
Fans hurled seats onto the field after the final whistle, after their team lost 2-0 in the showpiece event.
In the footage, which is linked below, fans can be seen hurling a number of dark objects onto the pitch, as their fellow supporters boo.
An Ajax player comes over to the fans, making a gesture of calm, but it appears to do little to placate the supporters.
Police had reported a harmonious atmosphere before the game, with both sets of supporters behaving amicably.
However it seems Ajax's comprehensive defeat riled a section of the Dutch club's support, who have had problems with hooliganism in the past.