Saskatchewan RCMP say they are investigating a serious crash on Highway 35 Sunday afternoon. In a news release sent shortly before 4:30 p.m., RCMP said officers with Nipawin detachment were on the scene near the intersection with Highway 335. RCMP said as the investigation is in preliminary stages, they do not have additional details to share at this time. RCMP said both highways were closed for an undetermined amount of time and detours were in place.