In 1958, on the eve of neighboring Somalia's independence in 1960, a referendum was held in the territory to decide whether or not to join the Somali Republic or to remain with France. The referendum turned out in favour of a continued association with France, partly due to a combined yes vote by the sizable Afar ethnic group and resident Europeans. There was also reports of widespread vote rigging, with the French expelling thousands of Somalis before the referendum reached the polls. The majority of those who voted no were Somalis who were strongly in favour of joining a united Somalia, as had been proposed by Mahmoud Harbi, Vice President of the Government Council. Harbi was killed in a plane crash two years later. Djibouti finally gained its independence from France in 1977, and Hassan Gouled Aptidon, a Somali politician who had campaigned for a yes vote in the referendum of 1958, eventually wound up as the nation's first president (1977–1999). In early 2011, the Djiboutian citizenry took part in a series of protests against the long-serving government, which were associated with the larger Arab Spring demonstrations. The unrest eventually subsided by April of the year, and Djibouti's ruling People's Rally for Progress party was re-elected to office.