At least 20 people were killed and at least 14 injured after a bus crashed on a road in Colombia on Saturday, police said. Images on Colombian television showed the bus flipping over in the early morning incident between the south-western cities of Pasto and Popayán, which authorities said may have been caused by a mechanical fault. Local media said the bus had been close to tumbling down a mountainside but had come to a halt against a barrier. The bus was travelling between the port city of Tumaco and Cali, 200 miles (320km) to the north-east, when the tragedy occurred. Among those injured were a three-year-old girl and an eight-year-old boy, according to reports. Captain Albertland Agudelo, from the Narino department traffic police, said: “Unfortunately, we have a toll of 20 people dead.” Col Oscar Lamprea, director of traffic and transportation in the area, told reporters that investigators are looking at possible “mechanical failures in the brake system”. A preliminary report suggested the driver may have lost control after coming out of a bend in a foggy area, according to local reports. It took rescue workers from the police and fire departments about nine hours to set the vehicle upright, evacuate the injured and recover the bodies.