The Premier League is warning football supporters who take flares or smoke bombs into stadiums are risking banning orders or even prison.
It is launching a campaign aimed at eradicating the growing trend of fans taking pyrotechnic devices to matches.
Recent incidents involving flares have occurred at Wembley and Villa Park.
"We will say to fans we understand you think this is a bit of fun but they are dangerous," said the Premier League's head of supporter services Cathy Long.
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