Eleven people died, including four children, and another 30 were injured in a bus crash on the highway between the Colombian provinces of Caldas and Cundinamarca, traffic authorities said Saturday.

The head of the traffic police of Caldas, Maj. Fernando Alonso, told reporters that the vehicle slammed into a mountainside at a place called Alto del Diablo in the central province of Caldas.

An official of the Manizales Red Cross said that nine people died at the scene of the accident, while another two, a minor and an adult woman, passed away at medical centers.

Most of the fatalities and injured came from the city of Quibdo, capital of the northwestern province of Choco, and were headed for Bogota, taking advantage of the New Year's holidays.

The Arauca company bus left Friday from Quibdo. The accident took place around 3:00 a.m. Saturday for causes currently under investigation by the authorities.

The injured, including the driver and his assistant, were attended at hospitals of the region. At least five of the injured are in serious condition.

Passengers told local media that the bus, which was destroyed, was traveling at high speed. EFE