According to the UK’s Foreign and Commonwealth Office, Bolivia is undergoing a period of social unrest. Since the start of the year there have been a number of fatalities. Roads are blockaded from time to time. You should avoid demonstrations at all times and should not attempt to pass through or go around roadblocks. Strikes and other civil actions can occur at any time and can disrupt transport locally or nationally.
Blockades intensified in mid-September and continue. Road traffic across the Altiplano from La Paz westwards, in particular up to Lake Titicaca, the Peruvian border, Oruro, and the Chilean border is subject to blockades or disruption at any time. La Paz to the Yungas is equally affected. Visitors are advised not to travel in these areas. Sorata has particular problems.