Germany and Portugal are facing UEFA fines following their European Championship opener on Saturday night. The German Football Association is being held accountable over the behaviour of their fans during the country's 1-0 Group B win in Lviv.
Supporters threw screwed up paper at Portugal's players during some corner kicks at the Arena Lviv and let off a smoke bomb in the stands.
Portugal, meanwhile, face action over a delayed kick-off to the second half.
UEFA said in a statement:
"The German Football Association (DFB) is charged with the throwing of missiles by its supporters, while the Portuguese Football Federation (FPF) faces proceedings for a delayed kick-off to the second half.
"The UEFA Control and Disciplinary Body will deal with the case on Thursday 14 June." "UEFA confirms that it has opened two disciplinary proceedings following Saturday's UEFA EURO 2012 Group B match between Germany and Portugal in Lviv.