President Muhammadu Buhari is due to travel to London “for a scheduled medical check -up”, a statement from his office says.
This is the second time this year that he will have travelled to see doctors in the UK’s capital. He was in London for a fortnight in April.
While away the vice president, Yemi Isinbajo, will perform the functions of the Office of the President,” the spokesman, Femi Adesina, said in his statement. “During the vacation, the president will also undergo routine medical check-ups.”
Neither the spokesman’s statement nor Buhari’s letter gave any details on what medical issue led the president to take leave.
Buhari flew to London for a 10-day holiday in June 2016, during which received treatment for a persistent ear infection, officials said.
“He is due back in the country during the second week of July,” the president’s office says.
Mr Buhari has been criticised in the past for travelling abroad for treatment, especially as the country’s public health service remains severely under funded.