A massive crash on Interstate 94 on Sunday afternoon between Osseo and Foster in Eau Claire County, Wis., involved 40 vehicles and left seven people injured.

According to the Wisconsin State Patrol:

The crash happened at about 12:30 p.m.

Forty vehicles were involved: seven semitrailer-trucks and 33 automobiles. Among the seven injuries was one that was life-threatening.

All traffic was rerouted from the location of the pile-up. Traffic on both directions of I-94 was moving again by about 5:30 p.m.

The news release cited slippery road conditions and advised motorists use extreme caution in such conditions. A winter weather advisory was in effect through 9 p.m. Sunday.