One person dead. Four workers overcome by toxic fumes. Firefighters in hazchem suits scouring a building for victims. It must have looked grim for people passing by on Kerikeri's Fairway Drive on Monday evening, but it was all just an exercise designed to hone firefighters' skills and improve inter-agency cooperation. About 20 members of Kerikeri Fire Brigade, half a dozen St John Kerikeri medics, a police officer and a council environment protection officer took part in the drill with staff at Bunnings Warehouse playing the role of victims in the simulated chemical spill scenario.