According to Daily Mail, UEFA have threatened to ban England and Russia from Euro 2016 if there is further violence following ugly scenes in the Stade Vélodrome last night. It comes as thousands of English and Russian supporters travel to Lille, in northern France, for their second games of the tournament.
Last night several hundred English and Russian fans squared off in Marseille, hurling beer bottles and chairs and drawing volleys of tear gas from riot police who struggled to contain the fighting in the narrow streets of the Old Port district. Inside Marseille's Stade Vélodrome the Balaclava-clad Russian thugs - wearing gum shields and mixed martial arts gloves and wielding telescopic truncheons - then charged at their English counterparts at the final whistle - as well as firing a flare gun into the England fans.
The French government on Sunday announced a ban on alcohol near Euro 2016 venues and fan zones, after three days of drunken violence among fans in the southern city of Marseille.
England fans hurled themselves over railings and concerned parents were seen carrying their children away from the fighting, with stewards - rather than police - left to intervene between scuffles. Russian fans then paraded the English flags they had stolen as trophies in a square in Marseille.
In a statement UEFA said: 'Such unacceptable behaviour by so-called supporters of the national teams of England and Russia has no place in football, a sport we must protect and defend.
The UEFA Executive Committee has warned both football associations that – irrespective of any decisions taken by the independent disciplinary bodies relating to incidents inside the stadium – it will not hesitate to impose additional sanctions on the Football Association (FA) and the Russian Football Union (RFS), including the potential disqualification of their respective teams from the tournament, should such violence occur again.
Russia's second game in the competition is against Slovakia - in Lille - on Wednesday at 2pm.
England host Wales the following day in Lens - only half an hour away. Fans without tickets for the match were strongly advised to avoid travelling to Lens - but go to Lille instead - as it is deemed too small to cope with the tens of thousands of England supporters expected.
The British Government has offered to send more UK police to France ahead of England's match in Lens following the violence in Marseille, a spokesman said.
UEFA's announcement this afternoon comes as the European football governing body faces serious questions as to why there was so little segregation to prevent Russian fans charging at the English supporters, a lack of policing inside the stadium and why it allowed the match to kick off so late.
Russian fans also smuggled fireworks, smoke bombs and flares into the stadium, prompting more questions over security. A video also showed the Russian supporters firing a flare gun into a section of England fans. At the final whistle, the Russian fans - separated only by a rope - sprinted towards the England fans, who were forced to rush for the exits.
Mark Leader, who was inside the stadium on Saturday night, said the Russian supporters started 'smacking everyone they could'.
He told Sky News: 'We had to run, jump down seats, (we) jumped over a fence, people (were) jumping 10ft just landing on their heads and their backs just trying to get away. People just had to run. It was pretty frightening. If you didn't get away, you got hit, it was pretty simple. So people just ran.'
One fan said that some Russian fans had worn England shirts to try and avoid detection.
Ian Allsop, 45, from Luton, was beaten with a baseball bat by a Russian hooligan in the Old Port.
He told the Daily Mirror: 'One went to punch me and I ducked. But then someone took a wooden bat to my arm. It is killing me today. The Russians were completely organised.'
England supporters said they were shocked at how lax security was getting into, and then within the stadium itself given it was supposed to be at its highest due to the threat from terrorism and hooliganism.
Disabled English fans in wheelchairs were caught in the violence as the Russian thugs charged towards the English section of the stand.
Marseille's emergency services said 35 people were injured in Saturday's disorder, including one middle-aged man who was knocked unconscious, and one England supporter who suffered a heart attack when he was kicked and punched to the ground.
Rebekah Vardy, the new wife of Leicester City striker Jamie Vardy, tweeted that she was caught up in the 'horrific' violence before kick-off.
She wrote: 'That has to be up there with the worst experience EVER at an away game! Teargassed for no reason, caged and treated like animals! Shocking!'
The violence has echoed the brutal scenes from the France 1998 World Cup, during the infamous 'Battle of Marseille', where English fans clashed with local hooligans after England's victory against Tunisia.