TUCSON, Ariz. — A portion of the main freeway that runs through the southern Arizona desert and links the state's two largest cities remains closed outside Tucson on Wednesday morning, a day after a deadly crash caused a hazardous material leak and forced evacuations nearby.
Residents within a half mile of the crash on Interstate 10 southeast of downtown Tucson were ordered to leave, and those within 3 miles were told to shelter in place after liquid nitric acid was determined to be leaking from the truck tractor pulling a box trailer, the Arizona Department of Public Safety said. The acid sent up eerie yellow and red plumes over the asphalt roadway that runs through dry land scattered with scrub brush.
