Ethiopia's Prime Minister Abiy Ahmed, who has implemented a series of reforms, has called on Ethiopians living abroad to help build the nation and bring new ideas to the country.

He was addressing Ethiopian expatriates at a stadium in the German city of Frankfurt on the final stage of his European tour.

Earlier this week, he met the French and German leaders in Paris and Berlin.

He also made a pitch for investment in Ethiopia at a G20 Africa gathering.

Since he became prime minister in April, he has also visited the US seeking investors.