President Muhammadu Buhari will reportedly fly through London on his way home from next week’s United Nations gathering of world leaders, raising more questions about his health.

A statement signed by presidential spokesman, Femi Adesina, indicated that President Buhari would route his return via London where he has spent several months on three occasions seeking medical treatment for an undisclosed health condition.

Adesina’s statement also disclosed that the president would deliver Nigeria’s statement at the UNGA.

“President Buhari will join other world leaders at the welcoming reception to be hosted by the UN Secretary-General, Antonio Guterres, and also hold a bilateral meeting with the UN scribe,” he said.

According to Sahara Reporters, Adesina said Buhari and members of his delegation will strive to project Nigeria as a strong moral force and responsible member of the international community.

He added that Nigeria’s commitment to global peace, security and development will also be reaffirmed and where necessary, the need for increased international cooperation in the fight against corruption.

Adesina said Buhari, who will be accompanied by the governors of Zamfara, Ebonyi, and Ondo States, as well as some members of his cabinet, plans to seek the support of other UN member states for his administration’s “efforts towards combatting illicit financial flows in order to foster sustainable development.”

This will be the president’s first trip outside Nigeria since his return in August.

Friday’s statement says Buhari will meet with President Donald Trump and other leaders during the U.N. gathering in New York.