At least 20 people were killed and 14 were injured after a bus crash on a Colombian road on Saturday, reported the local police. 

Colombian television displayed images of a bus flipping over in the early morning between the southwestern cities of Pasto and Popayan. Authorities are saying that the accident was caused by a mechanical fault. 

The bus, which was traveling between Tumaco and Cali, tumbled down a mountainside but stopped upon meeting a barrier. 

Among the injured were a 3-year-old girl and an 8-year-old boy, according to the reports.

“Unfortunately, we have a toll of 20 people dead," lamented Captain Albertland Agudelo, from the Narino department traffic police.

The director of traffic and transportation in the area, Col. Oscar Lamprea, told reporters that investigators are looking at impossible "mechanical failures in the brake system."

A preliminary report wrote that the bus driver may have lost control after driving out of an area infested with fog, according to local reports.

Rescue workers from the police and fire departments took nine hours to re-erect the vehicle, rescue the injured and recover the individuals who lost their lives.

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