Eleven people died and 13 others were injured in a bus accident on a highway in the northern Mexican border state of Chihuahua, officials said Monday.

The accident occurred on Sunday on the highway linking the towns of Creel and Guachochi when a passenger bus went off the road and plunged into a ravine, a spokesperson for the Chihuahua state Attorney General's Office told Efe.

Apparently, the bus owned by the Gran Vision company and which was transporting agricultural workers in the region, had a "brake problem," which resulted in its crashing into a hillside, rebounding, crossing the containment railing and falling into the ravine, authorities said.

Eleven people died in the crash, among them two children, and 13 others were injured, including the driver, who "is in delicate condition and in the custody" of the authorities, the AG's office said.

Authorities added that the injured, most of whom were seriously hurt, are being treated at several hospitals in the area, except for one woman who was airlifted to Chihuahua city, the state capital, because of the nature of her injuries.

In a communique, the state AG's office identified the driver as Jose Manuel Flores Acosta, 74, who is in the custody of law enforcement authorities on homicide and negligent injury charges, and it said that it is investigating the accident. EFE