ABUJA - Nigeria's president is officially getting back to work after nearly two months in London on medical leave.
President Muhammadu Buhari's aide Femi Adesina tweets that Buhari has signed a letter informing the National Assembly "of his resumption of duty from today."
The president returned to Nigeria on Friday but left Vice President Yemi Osinbajo in charge of Africa's most populous nation over the weekend as he rested.
The government has not explained what is ailing the 74-year-old president, who has made reference to blood transfusions and said he had not been so sick in decades.
Buhari on Friday said further medical checkups will be needed in the coming weeks.
Concerns have grown that he is not fit to resume power.