text: Perth Glory supporters, who set off a series of flares, will face the prospect of a five year ban after the club slumped to a 3-0 defeat to Sydney FC. Police have charged two teenagers for allegedly setting off flares during which a 13-year-old boy suffered burns to his leg at around 7.10pm in Friday's clash at nib Stadium in Perth. The 16-year-old boy, from Bicton,  has been charged with grievous bodily harm and use of signals and flares. He will appear before the Perth Children’s Court on May 6. The 15-year-old, from Palmyra, has been charged with grievous bodily harm and will appear in Perth Children's Court on May 8. Scroll down for video . Perth Glory fans set off a flare during the round 25 A-League match between the Perth Glory and Sydney FC at nib Stadium on Friday night . As angry fans vented their frustration at the club's hierarchy on Friday, a series of flares were set off within the club's active supporter group section amid wild scenes. Things escalated after Sydney went 3-0 up in the second half, with the supporter base venturing onto the concourse to set off more flares. NIB Stadium operators VenuesWest has threatened a five year ban on the patrons who were involved with setting the flares off within the stadium, Perth Now reports. VenuesWest chief executive David Etherton said the organisation will work with police to investigate the incident and CCTV footage to collect all related evidence. 'Anyone who is caught setting off flares within nib Stadium will immediately receive a lengthy ban,' he said. The crowd gather to watch a flare set off during the match as Sydney FC go on to win the match 3-0 . Perth Glory supporters, who set off a series of flares, will face the prospect of a five year ban . The incident follows as Glory were evicted from competing in the finals series and fined $269,000 after being found guilty of breaching the salary cap over a three-year period. Football Federation Australia claimed the club deliberately hid salary cap rorting for three seasons and failing to disclose payments and benefits to at least six players. Despite the club sitting equal top of the ladder with just two rounds remaining, Glory will now finish at seventh spot unless they launch a successful appeal against FFA's findings. Sorry we are not currently accepting comments on this article.
target: Perth Glory fans, who set off flares, will face the prospect of a five year ban .
  This comes after police charged two teens for allegedly setting of flares .
  A 13-year-old boy suffered burns to his leg and was taken to hospital .
  The 16-year-old and 15-year-old were charged with grievous bodily harm .
  The pair will appear at the Perth Children's Court next month .