Mozambique’s main opposition leader said he’ll announce plans for renewed protests against the outcome of October elections later this week, a phase he has suggested will be more severe than previous demonstrations in which scores of people have died.

Post-election violence has spread across Mozambique, paralyzing cities and disrupting daily life. As the chaos escalates, the United Nations calls for calm and a peaceful resolution.

The death toll inflicted by Mozambique’s post-election unrest has climbed to 261, according to a local monitoring group, with most of the fatalities caused by police gunfire.