President Pierre Nkurunziza of Burundi, aged 55, has died of a heart attack.
The government of the central African nation announced in a statement posted on Twitter. 
The statement said he was admitted to hospital on Saturday after feeling unwell.
His condition then improved but on Monday he had a cardiac arrest and efforts to revive him were unsuccessful.
URGENT: Le Gouvernement de la République du Burundi annonce avec une très grande tristesse le décès inopiné de Son Excellence Pierre Nkurunziza, Président de la République du Burundi, survenu à lâHôpital du Cinquantenaire de Karusi suite à un arrêt cardiaque ce 8 juin 2020. pic.twitter.com/PP46kKzAM5
— Burundi Government (@BurundiGov) June 9, 2020
