Dodoma: Samia Suluhu Hassan has been declared the winner of the country's violent presidential election while securing nearly 98 percent votes. Meanwhile over 700 people have been killed in the violent incidents.The final result announced by the electoral commission on Saturday showed Samia Suluhu Hassan had won 97.66 percent of Wednesday's vote, dominating every constituency.A spokesman for the main opposition party Chadema, which was barred from taking part in the election, slammed Hassan's victory as a 'mockery of the democratic process', 'We are calling for the intervention by a credible body to oversee another fresh election,' John Kitoka told French news agency.In a speech from the administrative capital Dodoma after being certified as the winner, Hassan said the actions of the protesters were 'neither responsible nor patriotic'. 'When it comes to the security of Tanzania, there is no debate - we must use all available security avenues to ensure the country remains safe,' she said.The election for president and parliament set off days of violent protests as demonstrators took to the streets of major cities to protest against the barring or prevention of Hassan's main rivals from running and what they described as widespread repression.Despite a heavy security presence, election day descended into chaos, with some demonstrators tearing down banners of Hassan and setting fire to government buildings, and police firing tear gas and gunshots, according to reports quoting witnesses. Internet connectivity watchdog NetBlocks said access to social media and mobile internet was restricted across several cities during and after the vote.Chadema told media on Friday that 'about 700' people had been killed, based on figures gathered from a network checking hospitals and health clinics. On Saturday, Kitoka said the party's monitors had reported 'no less than 800 people' were killed by security forces in protests this week.Get instant alerts and updates based on your interests. Be the first to know when bi g stories happen.Meanwhile, the UN human rights office said credible reports indicated at least 10 people were killed in three cities.African Union chair Mahmoud Ali Youssouf congratulated Hassan in a statement on X, but also said he 'deeply regrets the loss of human life during the post-electoral protests and extends his sincere condolences to the families of the victims.'Foreign Minister Mahmoud Thabit Kombo told 'Al Jazeera' on Friday that the authorities have acted appropriately and the election was conducted fairly. 'No excessive force has been used,' he told Al Jazeera, saying the government has 'no official figures' on any protesters killed. 'I've not seen these 700 anywhere.'Hassan, who in 2021 was elevated from vice president on the sudden death of her predecessor, John Magufuli, faced 16 candidates from smaller parties.United Nations Chief Antonio Guterres is 'deeply concerned' about the situation in Tanzania, 'including reports of deaths and injuries during the demonstrations', his spokes man said in a statement.