MSN

Dozens of people were injured in a massive traffic pileup amid snowy conditions in southern Wisconsin on Friday, which blocked Interstate 39/90 for hours, authorities said.

Beloit Memorial Hospital said at least 27 people were treated for injuries sustained in the crash, WIFR-TV reported. The extent of their injuries was not immediately clear, the station said. State Patrol officials said snow, ice and whiteout conditions were factors in the crash.

Most of southern Wisconsin remained under a winter weather advisory Friday afternoon with more snow expected Saturday.