Regina Police are asking motorists to stay away from Albert Street North and Ring Road.
Authorities are investigating a single vehicle accident there. It happened around 4:30 this morning.
A semi-truck travelling west bound on the Ring Road attempted to merge north bound on to Albert Street North when it rolled on to its side.
Police, Fire and EMS crews are currently on scene working.
Traffic in the described area is restricted or blocked for an unknown time frame.