OKLAHOMA CITY Oklahoma highway officials have re-opened Interstate 40 in downtown Oklahoma City after a 21-vehicle pileup at its intersection with Interstate 35.
The two cross-country interstates meet near downtown Oklahoma City. Freezing rain in advance of a snowstorm slickened the highway overnight, and a semi-trailer jackknifed on a bridge over the Oklahoma River.
The pileup involved 10 crashes involving 21 vehicles, including three tractor-trailers. Several people were sent to hospitals.
Highway crews are warning drivers of "black ice," when the road appears wet but is actually covered by a thin layer of ice.