A windstorm in southern Illinois kicked up dangerous clouds of blinding dust off farm fields Monday, causing numerous crashes and killing at least six people on Interstate 55, police said.
The late morning crashes involved 40 to 60 cars and multiple tractor-trailers, two of which caught fire, Illinois State Police Maj. Ryan Starrick said.
At least six people died, he said.
I-55 was shut down in both directions in Montgomery County, 75 miles (120 kilometres) north of St. Louis.