Chinese President Xi Jinping (L) holds a welcoming ceremony for Nigerian President Muhammadu Buhari before their talks in Beijing, capital of China, April 12, 2016. [Photo/Xinhua]

Buhari thanked China for its long-term assistance to Nigeria's infrastructure construction.

He said the Johannesburg summit injected new vitality into Africa-China relations and brought more opportunities for Nigeria-China cooperation. Nigeria was willing to implement cooperation deals already reached with China, strengthen cooperation in areas including agriculture, mining, infrastructure and human resources. Nigeria will also strengthen coordination with China on international affairs.

After the talks, the two presidents witnessed the signing of several deals of cooperation in infrastructure, production capacity, investment, aviation, technology and finance.