CHETWYND, B.C. — A grass fire erupted near the CN Rail yard in Chetwynd on Sunday.Chetwynd Fire Chief Leo Sabulsky said that the fire was reported at around 11:30 yesterday morning and grew to 15 hectares in size before crews managed to contain the blaze around four hours later. He said that a helicopter was dispatched by BC Wildfire Service and bucketed water to the site and a cat was used to build a fire guard.According to Sabulsky, the fire is now contained and the BC Wildfire Service’s Northern Fire Attack Teams will continue to monitor the scene over the next three days as a complete mop-up is necessary. The fire has caused the District of Chetwynd to close the Crown and Centurion Trails, and residents are asked to stay clear of the burn area. Sabulsky added that the cause of the fire is suspicious and all residents are asked to be extra diligent and note any hikers or persons using the trails.