More than 30 people were killed in a bus crash on a mountain road in southwestern Bolivia, with 14 others injured, including four children.

The bus plunged nearly 800 meters into a ravine between the cities of Potosí and Oruro.

Authorities believe speeding may have caused the crash, as the driver reportedly lost control.

This is the deadliest road accident in Bolivia this year, the BBC has reported.

Road accidents are common in the country, with an average of 1,400 fatalities annually.

Written by B.C. Begley