<p><br /> At least 20 people are missing in Colombia after a mudslide swept over people changing from one bus to another because an earlier slide was blocking a mountain road.<br /> </p><p><br /> The accident happened in the north-west of the country, on the road between the towns of Giraldo and Canasgordas, 200 miles from the capital, Bogota.<br /> </p><p><br /> Officials said passengers got off one bus and were crossing the blocked portion of the road to board a second bus that had been sent to pick them up because of the earlier landslide when another mudslide cascaded down the mountain.<br /> </p><p><br /> The slide also destroyed four or five homes, they said.<br /> </p><p><br /> About 100 workers began digging looking for the missing but the effort had to be suspended because of dangerous conditions caused by rain and poor visibility, according to officials.<br /> </p><p><br /> Authorities have reported that the strong rainy season caused flooding and made many roads unusable across Colombia in recent weeks.<br /> </p>
