WINDHOEK, Namibia (AP) — The candidate for Namibia's ruling party led Monday in early results of a presidential election characterized by technical problems which caused voting to be extended for three days.

The opposition has rejected the results and claimed the extension was illegal, undermining the vote in a southern African country that has a largely smooth history of elections and is praised as one of the region's more stable democracies. Final results are expected this week, with opposition parties saying they will challenge the validity of the election in court.

The problems in last Wednesday's election, which included a shortage of ballot papers and other issues, led election authorities to allow some polling stations to stay open until Saturday.

The issues threaten to overshadow any result, with Vice President Netumbo Nandi-Ndaitwah of the ruling SWAPO party a strong contender to become Namibia's first female leader.

The 72-year-old Nandi-Ndaitwah, a former member of Namibia's underground independence movement, had around 56% of the vote in the partial results published Monday. Only 220,000 of the approximately 1.4 million votes cast have been counted. Panduleni Itula of the Independent Patriots for Change opposition party is second with 27% of the vote.

Namibians voted for president and for the makeup of Parliament in a large but sparsely populated country on the southwest coast of Africa that has swathes of desert running through it. Namibia has been governed by SWAPO since independence from apartheid South Africa in 1990.

While Nandi-Ndaitwah offers a chance at history, SWAPO has faced frustration from Namibians struggling with a high unemployment rate and other economic hardships, especially among young people. Government corruption scandals have tarnished its reputation as the country's liberator.

The Independent Patriots for Change said it expected to file a legal challenge against the election this week. Other opposition parties said they will join the case.

"It is about our country, it’s about our democratic credentials, it’s about the country that must work for everybody, the poor and the rich. It cannot only work for those who want to remain in power by hook or (by) crook,” said McHenry Venaani, the leader of the opposition Popular Democratic Movement and a candidate in the presidential election.

The Electoral Commission of Namibia which organized the election said there will not be a rerun despite opposition demands.

Other ruling parties in southern Africa have faced a mood of discontent this year.

In neighboring South Africa, the African National Congress, the party of Nelson Mandela, lost its 30-year majority and had to form a coalition to stay in government and keep hold of the presidency. The Botswana Democratic Party was stunningly swept from power in that country after governing for 58 years since independence from Britain.

In Mauritius, the incumbent party also lost in a landslide, while Mozambique's Frelimo party was accused of rigging an October election, sparking large and ongoing protests against its long rule.

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AP Africa news: https://apnews.com/hub/africa