Arizona HAZMAT situation caused by nitric acid spill | LiveNOW from FOX

A portion of an Arizona freeway was closed in both directions Tuesday due to a crash and HAZMAT spill, authorities said. The state Department of Public Safety said the closure on Interstate 10 between Rita and Kolb roads in Tucson was "extensive" and urged motorists to avoid the area. Pima County officials told Fox News Digital the substance that spilled was nitric acid. An alert directed everyone within a one-mile radius of the spill to shelter in place. More LiveNOW from FOX streaming video