A number of roads have been closed including Coral Farm and Millars Road. A number of roads have been closed including Coral Farm and Millars Road. Credit: Department of Fire and EmergencyThe Department of Fire and Emergency Services WA have issued a HAZMAT general warning for Gap Ridge and Maitland after a gas leak near the intersection of Coral Farm Road and Dampier Road. A number of roads have been closed including Coral Farm and Millars Road and firefighters are at the scene. A 1km exclusion zone is in place, with fears the gas leak may result in potentially dangerous fumes blowing towards Gap Ridge and surrounding areas.