Ethiopia has "no option" but to pursue multi-party democracy, the country's reformist new prime minister said Sunday, again shaking up Africa's second most populous nation that for decades has been ruled by a single coalition.

Prime Minister Abiy Ahmed's chief of staff announced the remarks on Twitter, saying they were made during a meeting with leaders of more than 50 national and regional parties, including ones from overseas, who demanded reforms in election law.

A multiparty democracy would need strong institutions that respect human rights and rule of law, Abiy said, according to his chief of staff.

The 42-year-old prime minister has announced sweeping reforms since taking office in April, including the release of opposition figures from prison and the embrace of a peace deal that led to the surprising restoration of diplomatic ties this month with longtime rival Eritrea.

Just months ago Ethiopia, a nation of more than 100 million people, faced widespread anti-government protests demanding wider freedoms, with the U.N. human rights chief and others expressing concern over hundreds of reported deaths and tens of thousands of people detained.

Ethiopia's ruling coalition, which has been in power since 1991 and along with affiliated parties holds every seat in parliament, came up with Abiy after former Prime Minister Hailemariam Desalegn stepped aside early this year. Abiy notably doesn't come from the Tigrayan People's Liberation Front, a party in the ruling coalition that has been the dominant force in government for most of the past 27 years.

Since taking office the new prime minister has surprised Ethiopians by openly acknowledging past torture by security forces, announcing the opening-up of the state-run economy and suggesting that his own position should have term limits.

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