European Union election observers have flagged irregularities in Mozambique's election as the country awaits the announcement of official results this week amid protests by opposition supporters and the recent killing of two prominent opposition figures.

Election observers working for the European Union (EU) say some voting results have been doctored in Mozambique, as unrest in the country continues to grow. Thousands of people joined opposition protests on Monday that were called by independent presidential candidate Venâncio Mondlane.

The EU observer mission said Tuesday that some of its 179 election observers deployed to the country had been prevented from observing tabulation processes in some districts.