Mozambique police on Monday fired teargas at protesters in the capital Maputo who had gathered at the scene where two opposition party figures were shot dead on Saturday after a disputed election.

The full results of Mozambique’s Oct. 9 national election are expected this week, with early results showing that the ruling party Frelimo is set for another win. Opposition candidates say the poll was rigged.

Frelimo has ruled the southern African country since 1975 and has been accused of electoral fraud by opposition leaders, civil society and election observers, which it denies.