Two people were killed and four injured when the pickup truck they were riding in crashed on northbound Interstate 19 Tuesday morning.

Five of the six occupants were ejected, and two people were pronounced dead at the scene, said Officer Kameron Lee, an Arizona Department of Public Safety spokesman.

The crash occurred shortly after 7:30 a.m. near the San Xavier Road exit when the driver lost control of the truck after tire failure, Lee said.

Maria Concepcion Gable, 49, and Marco O. Valles, 14, both of Tucson, were killed, Lee said. He said Gable was driving the truck.

Veronica Valles, 46, of Tucson, was taken to Banner-University Medical Center, and her condition was not known, said Lee. He said Marco was her son.

Three youths also were taken to Banner-UMC and were treated and released. 

Valles was the only one wearing a seat belt.

Contact reporter Carmen Duarte at or 573-4104. On Twitter: @cduartestar