President Buhari left Abuja on Sunday for London on a routine medical trip.
He was scheduled to travel from Nairobi last week to London but returned to Abuja last Friday.
Last month, the Presidential Special Adviser on Media and Publicity, Mr Femi Adesina had said Buhari would visit his doctor in London for ‘routine medical checks that will last for a maximum of two weeks’.
President Buhari’s trip to Kenya last week was to participate at the 50th anniversary of the United Nations Environmental Programme.
His return took many by surprise, given the earlier spelt-out details of his itinerary.