Snowy weather and whiteout conditions were blamed for multiple pileups in Ohio and at least two deaths on Tuesday, a day after at least four people were killed in dangerous travel conditions caused by a snowstorm that swept through the Plains and Midwest.

The Ohio State Highway Patrol said the driver of a semitrailer died after he crashed into an emergency vehicle early Tuesday on Interstate 70 in western Ohio’s Clark county.

Another person was killed in a crash on the Ohio Turnpike in Richfield at about 9 a.m. Tuesday, Cleveland.com reported.

The crash closed the westbound lanes of the Turnpike between Interstate 271 and Ohio 8, according to the Ohio Department of Transportation.

A crash on Interstate 80 Tuesday afternoon near Austintown, Ohio, involved more than 50 vehicles, WKBN reported.