Burundi’s newly-elected president, Evariste Ndayishimiye is due to be sworn in on Thursday – two months earlier than planned.
The fast-tracked ceremony comes after his predecessor Pierre Nkurunziza died suddenly last week.
Mr Ndayishimiye is a former rebel leader, like Mr Nkurunziza.
He was backed by his predecessor and was declared the winner of May’s presidential election, which the opposition said was rigged.
According to Burundi’s constitution, if the head of state dies in office then the president of the national assembly, currently Pascal Nyabenda, should succeed him.
But after a ruling by Burundi’s Constitutional Court, Mr Ndayishimiye’s inauguration in the capital, Gitega, was brought forward.