Croatia on Tuesday charged nine hooligans for attacking a bus of PAOK fans ahead of the Greek club's Europa League match against Dinamo Zagreb in December.
Four Greek nationals were injured in the December 14 incident.
The nine, aged between 18 and 23, were charged with stoning the bus ferrying around 40 Greek fans from the airport, a municipal prosecutor's office said in a statement.
After smashing the bus windows the suspects, who were accompanied by some 30 other unknown perpetrators, threw torches in it, causing a fire that was extinguished by firefighters, it said.
The suspects, who have been held in detention, were charged for "endangering lives and property due to hatred," the prosecutor's office said.