“All three clubs have been found to have breached SPFL rules in failing to ensure, as far as is reasonably practicable, that their supporters did not engage in “unacceptable conduct” at those matches,” the league said in a statement.
“The clubs were also found to have failed to identify or take proportionate disciplinary measures against the supporters responsible for the pyrotechnic displays and, in Partick Thistle’s case, also against those who carried out the pitch invasion.”
The invasion led to a two-minute delay in the Premiership play-off quarter-final second leg at Somerset Park on 9 May, while a similar delay was caused by Thistle fans using pyrotechnics and throwing them on to the pitch.
The pyrotechnics display by Aberdeen fans during their 14 May match against Celtic led to Sky Sports “having to issue an apology for interruptions to the broadcast following the display, which caused significant smoke clouds to form within the stadium”.
Celtic supporters carried out pyrotechnic displays in the north-east corner of Celtic Park during and prior to the final league game of the season at home to St Mirren on 17 May.
“These incidents caused a health and safety risk to fellow supporters, players and those working at matches; as well as a significant inconvenience to thousands of supporters at the matches and fans watching these games at home,” the SPFL added.
