Nigeria’s President Muhammadu Buhari has returned from London, where he had travelled for medical check-ups.

His return on Thursday was announced by the government on Twitter:

The president, who took a “routine” medical trip to the UK on 30 March, has been heavily criticised for opting for treatment abroad while the country’s healthcare system remained “mismanaged and underfunded”, local media reported.

Nigeria also faces growing insecurity, with several attacks reported while President Buhari was away.