A bus transporting passengers, most of them arrived on a flight from Phoenix, crashed in western Mexico on Saturday.

The office reported 17 dead and a state Red Cross spokesman, Miguel Langarica, said at least 18 people were killed and 13 injured, 5 of them severe. The divergence could not be immediately reconciled.

The Vallarta Plus bus had 35 passengers on board and on its way from the resort city of Puerto Vallarta to Guadalajara it ran off a mountain road and fell into a narrow valley near the town of Compostela, about 200 kilometers from Guadalajara, Nayarit state police director Fernando Carbajal said.

A Red Cross worker said the bus had fallen more than 300 feet (100m) into the ravine.

Daniel Rios, a Vallarta Plus spokesman, said almost half of the passengers had arrived in Mexico on a flight from Phoenix on Friday. The plane had been bound for Guadalajara but was rerouted to Puerto Vallarta along with 17 other flights after a fire broke out at the Guadalajara airport.

The spokesman said the passengers weren’t yet identified but at least eight family members were Mexicans who were residents in Phoenix and had traveled to Mexico to celebrate the Independence Day. Among the dead, a one-year-old child was reported.

The driver, 28-year-old Magdiel Coronado, was also injured and sent to the nearest hospital, authorities said. Four of the injured lived in Los Angeles and Riverside, Calif., but authorities had no information on the deceased.