TUCSON, Ariz. — An overheated axle caused five railroad cars to derail Sunday on Tucson’s South Side, the Arizona Daily Star reports.
Mike Furtney, a Union Pacific Railroad spokesman, said Monday that the axle most likely overheated because of a mechanical failure, but said an investigation into the incident was continuing.
The cars, which were carrying automobiles, tile, paper products and other items, derailed about 9:30 a.m. in the 6400 block of South Wilmot Road near Interstate 10. No injuries were reported.
The 96-car train was westbound on its way from Marion, Ark., to Long Beach, Calif., officials said. Hazardous chemicals were on board, but not in the derailed cars. The tracks were cleared and back in service by about 2 p.m. Sunday.