Buhari left Abuja shortly after presiding over a meeting of the Federal Executive Council held at the Presidential Villa, Abuja.
The Special Adviser to the President on Media and Publicity, Mr. Femi Adesina, said that Buhari would return to Nigeria on Sunday.
In the President’s entourage are ministers and other top government officials, including the Comptroller-General of the Nigerian Customs Service, Hameed Ali.
“The President will be back on Sunday,” Adesina said when asked about the duration of the President’s visit.
He had earlier in a statement on Tuesday said prior to the D-8 Summit, Buhari, at the invitation of President Recep Tayyip Erdogan of Turkey, would participate in an official working visit to Ankara, the capital city.
According to the statement, the President will have a tete-a-tete with his Turkish counterpart in Ankara while delegations from both countries will hold discussions in various fields including defence cooperation, security, educational and migration issues.
He said Buhari would also visit the Grand National Assembly of the Republic of Turkey in Ankara where he would meet with the Speaker, Ismail Kahraman.
He added that while in Istanbul, the Turkish commercial centre, the President would use the occasion of the D-8 Summit to bolster warm and growing ties across a broad range of areas of cooperation with leaders of the D8-member countries, namely Bangladesh, Egypt, Indonesia, Iran, Malaysia, Pakistan and Turkey.
The statement read, “The Summit with the theme, ‘‘Expanding Opportunities through Cooperation,” will among other things, focus on cooperation in the areas of agriculture, trade, transport, energy and increased private sector participation among member-countries.
“During the ninth Summit of the D-8, which will also mark the 20th anniversary of the organisation established to improve the developing countries’ positions in the world economy, the President will highlight the significant show of confidence in Nigeria’s business environment and economy.
“He will also affirm Nigeria’s resolve to work with the D-8 member-countries on many key areas, including peace and security, economy and trade.”
“At the end of the summit, the Heads of State and Government will adopt a communiqué, also known as the ‘Istanbul Declaration,’”