PIERRE, S.D. (KELO-AM) South Dakota officials are closing Interstate 29 from Sioux Falls (I-90 junction) to Brookings effective immediately due to blizzard conditions. I-29 was closed at 3 p.m. CST from Brookings to the North Dakota border. I-29 is also closed from the South Dakota border to Canada in North Dakota. Officials with the state Departments of Transportation and Public Safety say white-out conditions with zero to near zero visibility, icy roads, as well as blowing and drifting snow are making safe travel almost impossible along the I-29 corridor and throughout most of the northeast and eastern part of the state. Motorists are finding travel difficult to nearly impossible in some areas and are stopping on the roadway which creates safety concerns and increases the potential for serious accidents. Winter maintenance is being suspended on the closed portion of I-29 as well as highways with No Travel Advisories until conditions improve and it is safe for operations to resume. Motorists are being asked not to travel unless it is an emergency and are urged to visit safetravelusa.com/SD or to call 511 to check road conditions. Officials caution travelers to watch the weather and be prepared to change travel plans if necessary.