A massive crash involving over 100 vehicles happened on a Michigan highway Monday morning amid heavy snow. The accident forced authorities to close Interstate-196 both ways. Officials said between nine and 12 people were injured, but no deaths occurred. Videos from Chicago and Midwest Storm Chasers showed crushed cars and mangled trucks piled across the roadway. Michigan State Police reported 30 to 40 semi trucks were involved. The Ottawa County Sheriff’s Office received the first crash report around 10:19 am. The pile-up happened during strong lake-effect snow, which made roads slippery and cut visibility. Lake-effect snow forms when cold air passes over warm lake water, causing heavy snow in specific areas. Weather officials said visibility dropped to a quarter of a mile, with winds gusting 25 to 40 mph creating near whiteout conditions. Temperatures were below zero. Interstate-196 is closed between Exits 55 and 62 while emergency crews clear the wreckage. Injured people were taken to nearby hospitals. The massive crash triggered a regional emergency response with hospitals and ambulances coordinating care. Officials warned the highway could remain closed for hours and advised drivers to avoid roads and take extreme care during the storm.