A bus careened off a highway in Boyaco province north of Bogota and plunged into a chasm, killing 21 people and injuring another 30, police said Saturday.

The accident came just 11 days after another bus accident in mountainous Boyaco province killed 16 people.Highway police said the accident Friday near the village of Miraflores killed 21 people and injured 30 others, some seriously. The injured were taken by helicopters to various hospitals in Bogota, police said.