Voters in military-run Guinea-Bissau cast their ballots on Sunday in a referendum that could give the president more powers ahead of a general election meant to restore civilian rule later this year.
Voting got off to a slow start in some neighbourhoods when polls opened at 0700 GMT, AFP correspondents said, after a heavy early morning downpour.
Security was stepped up at strategic points in the capital, with members of the national guard and the police stationed at key locations.
Voting closes at 1700 GMT, with the first provisional results due from Tuesday.
The referendum comes less than 10 months after a coup in which the military seized power in the impoverished Portuguese-speaking west African country.
