Police clashed with England fans in the centre of Porto on Wednesday after beer glasses were thrown in the special 'fan-zone' set up for the Nations League finals, British media reported.
England supporters were staying in Porto ahead of Thursday's match in nearby Guimaraes against the Netherlands and gathered in the fan-zone to watch Wednesday's match between Portugal and Switzerland on outdoor big screens.
The Guardian reported that hundreds of England fans were baton charged by riot police after they threw beer glasses.
England’s Football Association (FA) last week urged supporters of the national team to stamp out "embarrassing" and anti-social behaviour.
Just landed in Porto for the UEFA Nations League... England fans clashing with riot police already pic.twitter.com/854etF4AKH— Oz Katerji (@OzKaterji) June 5, 2019
The FA released a video called "Don’t be that idiot" to highlight examples of English hooliganism that have come to light in recent months, ending with a message from England manager Gareth Southgate encouraging supporters to make the country proud by being on their best behaviour.