Large rocks broke away from a mountainside on Highway 108 this morning, blocking traffic on a stretch of road in Khun Yuam district, Mae Hong Son province. The Department of Highways says continuous rainfall and water erosion caused the collapse at kilometre markers 300+775 to 300+825 on the Nong Haeng–Mae Surin section, in the Ban Mae Surin area. The Khun Yuam Highway Unit deployed staff and