Celtic have been billed over fans behavior in the Europa League experience with Cluj on Thursday.
Disciplinary proceedings have been opened against the champions later fireworks were supposedly set off by enthusiasts contrary to their opponents.
Ethics the UEFA control and body will deal with the case at its meeting on October 17.
Celtic won next bunch side Lazio on October 24 and the match 2-0 to go top of Group E matches.
The Parkhead club were fined #11,000 for lovers pitching objects at Stockholm during the 4-1 Europa League play-off second-leg win over AIK in August and setting off flares.
As Livingston in the Scottish Premiership beat them 2-0 Egyptian suffered a setback.
The defeat means Celtic are next in the table.
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