West Ham United and Fiorentina have been charged by UEFA over fans incidents during Wednesday's Europa Conference League final.
The Hammers won 2-1 on the night, though there incidents from both sets of supporters.
Both clubs have been charged with "throwing of objects" while West Ham have also been charged for "invasion of the field of play".
Fiorentina captain Cristiano Biraghi was struck by a missile thrown from the West Ham end in the first half of the final.
Fiorentina have also been charged with "lighting of fireworks".