Lyon secured a 2-1 win over the Turkish side following a dramatic comeback, but it was the incidents pre-match that took centre stage.

Pictures and videos emerged on Twitter of fans clashing in the stands before pouring onto the pitch.

The Europa League quarter-final first leg was due to kick off at 8.05pm but was delayed about 45 minutes..

“Projectiles and Fireworks launched from the top of the stands require supporters to seek refuge on the lawn,” Lyon tweeted.