Celtic face two UEFA charges following AIK game
UEFA has opened disciplinary proceedings against Celtic following Thursday's Europa League play-off second leg against AIK in Sweden.
Charges against the Scottish champions relate to travelling supporters setting off fireworks and throwing objects, the governing body announced.
The case will be dealt with by the UEFA Control, Ethics and Disciplinary Body on September 19.
Celtic won 4-1 on the night to progress 6-1 on aggregate.