Paris - UEFA began disciplinary proceedings Sunday against Portugal, Hungary and Belgium for incidents in their Euro 2016 matches the previous day.
Portugal is charged with allowing a pitch invasion, Hungary for allowing crowd disturbances and other offences and Belgium for its fans setting off fireworks and throwing objects.
A fan ran on to the pitch in Portugal's 0-0 draw with Austria at the Parc des Princes in Paris on Saturday and posed for a selfie with Portuguese superstar Cristiano Ronaldo.
In Marseille, Hungarian fans clashed with stewards in the Stade Velodrome as they tried to climb a fence to join up with another group of Hungarians before the 1-1 draw with Iceland.
Hungary is also accused of allowing its fans to set off fireworks and throwing objects.
The punishment in that case will be announced on Tuesday.
Belgium also faces charges that its supporters threw fireworks and other objects during the 3-0 win against the Republic of Ireland in Bordeaux.
UEFA said it was yet to decide a date for its disciplinary committee to meet on the cases of Belgium and Portugal.