The driver of a Spanish train that derailed and killed 79 people was talking on the phone when the train flew off a tight curve, court documents show.

In the moments before the derailment, Garzon received a call on his work phone from Spain’s national train company Renfe, court documents show. The call was to inform Francisco Garzon, 52, of the route that he needed to take. The court said Garzon was talking to train company personnel and based on black-box data recorders, appeared to be consulting a paper document at the time of the derailment.

Read the complete story at NBC News.

At least 78 people have been killed in the passenger train derailment in northwestern Spain on July 24.

More than 140 were hurt, 36 seriously, after all eight carriages of the Madrid to Ferrol train came off the tracks near Santiago de Compostela.

Read the complete story at British Broadcasting Corporation.