Angolans are voting in a presidential election that is widely expected to keep Jose Eduardo dos Santos in office.
The incumbent’s ruling MPLA is expected to win comfortably at the expense of the smaller and weaker opposition parties.
His main rival, UNITA leader Isaias Samakuva, has made several complaints of alleged irregularities in the voting process.
It is only the third national election since Angola won independence from Portugal in 1975, and the second since the end a decade ago of a 27-year civil war.
The result may not be in much doubt but after 10 years of peace, the ruling party faces growing popular discontent over persistent poverty and inequality in a country which is Africa’s second largest oil producer, and also rich in diamonds and land.