Pierre Nkurunziza, President of Burundi has died after suffering a cardiac arrest, the government says.
He was admitted to hospital on Saturday after feeling unwell, his condition improved but on Monday he had a cardiac arrest and efforts to revive him were unsuccessful, the government says.
Mr Nkurunziza was due to step down from the presidency in August.
In 2015, the announcement that he would run for a third term plunged the country into chaos.
On his death, he had been president for 15 years.
In power since 2005, Nkurunziza was due to be replaced in August by political ally Evariste Ndayishimiye, who was declared earlier this month the winner of a May 20 presidential election.
Pierre Nkurunziza died at age 55.