Three treated after large blaze at Seaford trampoline centre ABOUT 90 firefighters have spent almost four hours battling a major blaze at a new trampoline centre in Melbourne's southeast. CFA crews were called to Oliphant Way in Seaford at about 1.30am to find the Gravity Zone centre overwhelmed by flames. Paramedics also attended the fire and took three men to Frankston Hospital with minor injuries. Ambulance Victoria spokeswoman Susannah Hicks said two people had suffered smoke inhalation while the other man had minor leg injuries. The fire was believed to have started accidentally in a foam pit. About 20 crews were dispatched to the incident and the fire at the 80m by 40m centre was brought under control at about 5.15am. The Gravity Zone activity centre only opened at the start of September. Formerly a factory, it was transformed into a kid-friendly playground with trampolines, foam pits and dodge ball courts. Fire crews will remain at the scene this morning.