Unrest in Tanzania following this week’s election that barred the incumbent president’s main rivals left about 100 people dead, Amnesty International said. The country’s biggest opposition party said hundreds more may have been killed.

Tanzania's President Samia Suluhu Hassan has won a disputed election with over 97% of the vote, according to official results announced on Saturday.

Somali President Hassan Sheikh Mohamud on Sunday congratulated Tanzania's President-elect Samia Suluhu Hassan on her re-election, describing her victory as a reflection of the Tanzanian people's confidence in her leadership.

Tanzania's main opposition party said on Friday hundreds of people had been killed in protests over elections this week, as the U.N. secretary-general called for an investigation into allegations of excessive use of force.

Protests are spreading in Tanzania as electoral authorities count the votes in a disputed presidential election that rights groups and opposition figures say was clouded by a climate of fear.

No fewer than 700 demonstrators have reportedly lost their lives in three days of election-related protests in Tanzania. Naija News reports that the protest erupted on Wednesday, following the country’s presidential election results,