At least two people have died in clashes overnight, linked to the presidential election in Burundi.
A police officer and a civilian were killed.
Explosions and gunfire have rung out around the capital, Bujumbura.
Burundi in crisis
Burundi is grappling with its worst crisis since 2005. There have been weeks of protests, a failed coup and clashes between rebel fighters and the army.
One voter told reporters what he most wants is security. “I want the country to be stable,” he said, “everyone should be protected and their safety guaranteed.”
Opposition parties boycott the vote
3.8 million people are eligible to vote in the election, which has been boycotted by the opposition.
President Pierre Nkurunziza is running for a third term.
However, his opponents accuse him of violating the constitution by seeking another five years in office.
Western donors and neighbouring African states have urged Burundi to postpone the vote.