Nigerian President Muhammadu Buhari has returned home after weeks of medical leave in the UK and speculation over his condition.
The 74-year-old landed at an air force base in the northern city of Kaduna and is expected to travel to the capital, Abuja.
The former military ruler left Nigeria on 19 January and has been on medical leave in London.
Details of his condition have not been disclosed.
An official statement on Thursday said President Buhari had left Nigeria for a “vacation, during which he had medical check-ups”.
“The holiday was extended based on doctors’ recommendation for further tests and rest.”
The main opposition People’s Democratic Party (PDP) has called for more transparency about the president’s condition.
The country is currently suffering from its worst economic crisis in years, following a sharp fall in the price of oil, its major export.