Mozambique's main opposition party says the ruling party stuffed ballot boxes and expelled opposition monitors from polling stations to help it win the country's October 28 presidential election.

Opposition member Saimone Macuiana said on Tuesday his Renamo party does not accept that the Frelimo party won three-quarters of the vote, wants the results annulled and a new election held.

He says he has submitted a 500-page complaint to the National Elections Commission.

Preliminary results gave Frelimo candidate Armando Guebuza more than 76 percent of the presidential vote, and his party between 75 and 80 percent of parliament's 250 seats.

Foreign observers deemed voting free and fair. - Sapa-AP