Tottenham's 2-0 victory over Marseille was marred by angry clashes towards the end of the game in north London.
Richarlison's second-half brace earned Antonio Conte's side all three points in their first Champions League outing since the 2019-20 season.
However, ugly scenes occurred at the Tottenham Hotspur Stadium in the away end.
The trouble started in stoppage time as missiles were launched between the Marseille fans and some in the home section closest to them.
Marseille's fans then proceeded to tear down a Pride flag that was hung inside the home end at the corner of the ground.
Police in riot gear came into the stadium after the final whistle and a smoke cannister was thrown into the stands.
Marseille fans were held behind after full time and surrounded by stewards and riot police.
Videos were shared online of the crowd trouble, with Declan McCarthy sharing a video of the Pride flag being torn down.
He wrote: 'Ugly scenes at the Tottenham stadium. Fighting, flares and missiles thrown from the visiting fans.
'Marseille ultras pull down Tottenham's pride flag in the corner of the ground. Disgusting to see. Riot police arrived to calm things down.'
Antonio Conte's Tottenham ran out 2-0 winners courtesy of a brace from summer signing Richarlison. Marseille were forced to contest the majority of the second half with ten men after Chancel Mbemba Mangulu was given a red-card for a tackle on Heung-Min Son.
Sosst
0
Groups of people will go mad over a childs game but wont even gather a protest against their oppressors🤦🏽♂️So called freedoms stripped away from the average joe every day & what do people do,They want to fight over a GAME💔💔💔🤯🤦🏽♂️😡
Bigmamajoe
1
What do you expect from french fans
jupckty
0
Cry Babies 😭
Kingbobbyfemie20
3
Marseille fans are found of doing this shiity act.
battlebots
0
DON'T EVER THINK OF TO BATTLE WITH THEM SPURSY😁😁
CkukwukaObiorah
0
football is just a game...u just have to love it..at all costs... with love ❤️❤️❤️
Sudaepstuz
6
be careful tottenham fans, better not to travel to marseille they a dangerous, your live is more important than watching football, please think
Madcap_237
0
arsenal fans are thinking that it's epl midweek game and are like what is happening is it touchel and conte again????
Rest Kid Rest[Crylaugh][Crylaugh][Crylaugh]
Naaceklpty
1
arsenal fans are thinking that it's epl midweek game and are like what is happening is it touchel and conte again????
Brainny1
5
SAY NO TO VIOLENCE FOOTBALL IS JUST A GAME LIVE IT .....LOVE IT