92% of voters in Congo-Brazzaville's controversial referendum have approved constitutional changes to allow President Denis Sassou Nguesso to run for a third term,,

Under the current constitution, the president has been unable to seek re-election because he is over the age of 70 and has already served two terms.The opposition say turnout was low and the vote should be annulled.However, official results put the turnout in Sunday's referendum at 72%.