Guinea has voted to back a contested new constitution, the country's electoral body said Friday, against critics who fear the move is a ploy to extend President Alpha Conde's grip on power. The proposal to change the constitution has proved hugely controversial in the West African state, spurring mass demonstrations in which at last 32 people have been killed, according to an AFP tally. The president of Guinea's Independent National Electoral Commission, Amadou Salifou Kebe, told reporters 91.59 percent of ballots were in favour of adopting the new constitution, while 8.41 percent were against. Turnout was 61 percent, he added, saying that these were provisional figures. bm-eml/ri