OSSEO, Wis. (NewsNation Now) — Authorities in western Wisconsin are trying to sort out a massive crash on Interstate 94 that involved multiple vehicles.

The crash occurred Thursday morning in Jackson County south of Osseo.

Jackson County Sheriff’s Office says there is a “massive” crash involving numerous vehicles in both directions of I-94. It asked motorists to avoid the area.

According to the Wisconsin State Patrol, icy conditions on I-94 could have been the factor in the multi-vehicle crash. The portions of highways that are closed include Trempealeau, Jackson and Eau Claire counties.

There were no fatalities and only minor injuries reported. 

WITI-TV initially reported more than 100 vehicles were involved in a pileup but State Patrol Lt. Tim Weiberg told Wisconsin Public Radio the number was closer to 40.

Authorities hope to get both lanes open by early evening.

NewsNation affiliate WFRV and the Associated Press contributed to this report.