Kick-off in the Premier Sports Cup final between Celtic and Rangers has been delayed due to pyrotechnics with supporters of both clubs ignoring SPFL warnings.
Huge displays of flares were set off in sections of the ground housing supporters of both clubs ahead of the showpiece final at Hampden Park.
A short delay was necessary before the match could kick-off with smoke blowing across the pitch and out of the national stadium.
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An SPFL warning ahead of the final read: "However, we have been clear with fans that while such displays will be accommodated, there remains a strict prohibition on smuggling pyrotechnics into the match, given they are illegal and pose clear risks to supporters, players and those working at matches.
"The SPFL, Scottish FA and both clubs are working with Police Scotland, and fans breaking the law by attempting to bring pyrotechnics into matches face a range of sanctions, including criminal charges and football banning orders as well as adding to the ongoing disciplinary process currently facing both clubs.
"As has been customary for recent Premier Sports Cup Semi-Finals and Finals, there will also be a pre-match organised display at the stadium, including the use of flame boxes ahead of the match kicking off. Such flame boxes are heavily regulated and used widely by sporting bodies across the world ahead of major events.
"Sunday promises to be a hugely exciting occasion, and we want fans of both clubs to have an enjoyable, memorable and safe day."
Both clubs face SPFL action after previously being charged over breaching rules. The governing body cited the behaviour of supporters with pyro leading to delays in both semi-finals in the competition.
