Nigeria's President Muhammadu Buhari smiles as he resumes work following seven weeks of medical leave, in Abuja, Nigeria March 13, 2017. REUTERS/Stringer

ABUJA (Reuters) - Nigerian President Muhammadu Buhari chaired his first cabinet meeting on Wednesday since coming back from medical leave last week.

Buhari has had no public appearances outside the presidential villa since coming back on Friday from London where he had been treated for seven weeks for an undisclosed illness.

Buhari called for two ministers for Christian and Muslim prayers before the national anthem was played at the start of the closed-door meeting, the usual practice before reporters were asked to leave the room.