Nigerian President Muhammadu Buhari returned to his country after more than three months in London for medical treatment.
He did not make comments upon his arrival in the capital, Abuja, and the government released no details on what had been troubling the 74-year-old leader.
Dressed in a dark kaftan and Muslim prayer hat, he walked unaided from his plane, holding rails on either side of him.
He was greeted by Vice President Yemi Osinbajo, who has acted as interim leader, and was accorded a military salute.
I thank Pastor Adeboye for visiting today, and for his prayers and good wishes. May God continue to bless him and his work. pic.twitter.com/eds2rT1gG5— Muhammadu Buhari (@MBuhari) August 18, 2017
The president also spent seven weeks in London for an unknown treatment earlier this year.
Buhari’s long absences led some in Africa’s most populous nation to call for his resignation.
In recent weeks, Buhari’s office released photos of officials meeting the rail-thin but smiling president in the hopes of reassuring people back home.
Buhari is due to address the nation on Monday, according to his office which as referred to the president’s issues merely as a “health challenge”.