RCMP on scene of serious single vehicle accident near Wapella Sask. Regina, SK, Canada / 620 CKRM News Room June 12, 2017 11:50 am Moosomin RCMP are currently on the scene of what they say is a serious single vehicle accident involving a semi on Highway 1 near Wapella. Both eastbound lanes of the roadway are currently blocked. Police say drivers can expect delays in the area for the next several hours. No other details have been made available at this time.