The Grant County Sheriff’s Office advised anyone living within a 2-mile radius of the ONEOK plant in Medford to evacuate Saturday afternoon. It is unclear when people will be able to return. “Please avoid any travel to or through Medford on U.S. Highway 81 at this time,” the sheriff’s office said earlier, citing an “active incident” at the plant. Aerial view of the explosion at the ONEOK plant in Medford, Oklahoma. Deer Creek Volunteer Fire Dept./Facebook The Deer Creek Volunteer Fire Department also urged people to avoid the highway “due to a large fire” at the plant. ONEOK said all company personnel are accounted for and that they are unaware of any injuries at this time. “We are working with local emergency responders and appreciate their quick response,” the company said in the statement. “Our focus continues to be working with emergency responders to extinguish the fire and keep the surrounding community and our employees safe.” ONEOK natural gas plant in Medford, Okla. Google Street View Maps The incident occurred at a natural gas liquids fractionation plant. Medford is located in northern Oklahoma, more than 100 miles north of Oklahoma City. This is a developing story. Check back for updates.