There were scattered reports of unrest.
Most polling stations in the African nation's fifth elections since the introduction of multiparty democracy in 1994 closed at 6 PM (local time), but some stayed open longer to accommodate voters following delays of several hours because of rain and late deliveries of polling materials.
Results were expected to start trickling in tomorrow.
Police fired tear gas in at least one area of Blantyre, the country's biggest city, to disperse angry protesters who threw stones and ransacked a polling station where there had been a voting delay.
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Protesters blocked a road with tree branches, forcing the president to use an alternative route from the presidential palace to the polling station in the eastern town of Zomba.
Malawi uses the first-past-the-post system, meaning that the candidate with the largest share of votes, no matter how small a percentage of the total votes cast, is the winner. Aside from the presidential vote, legislative and local elections were also held.
A younger candidate, Atupele Muluzi, 35, the son of Malawi's first multiparty president Bakili Muluzi, appears to be attracting support from first-time voters.
And a newcomer to politics, retired pastor Lazarus Chakwera, also is getting enthusiastic support. The 59-year-old minister for the Assemblies of God church is running as someone free from fraud and corruption.
"I am proud I'm not a billionaire politician and I don't intend to be one," he told The Associated Press.