One person was killed and a dozen were injured on Monday in an opposition protest near Ivory Coast's main city Abidjan, a local mayor said, two weeks ahead of a contentious presidential election. Most of the protesters were youths, who had responded to an opposition call for acts of civil disobedience by setting up roadblocks on the main road to neighbouring Ghana. The demonstration was in the town of Bonoua, a onetime stronghold of former first lady Simone Gbagbo about 60 kilometres (35 miles) east of Abidjan. Bonoua's mayor Jean-Paul Amethier blamed security forces for the casualties. Many observers fear tensions over the election may push the West African country into a crisis like the one in 2010-11 when 3,000 people died and Ivory Coast was plunged into chaos. Also Monday, police clashed with students protesting in Abidjan over university costs. Students, who had responded to a call for protests from the opposition-aligned Fesci labour union, set fire to at least one bus and two cars in Abidjan's Rivera 2 district, an AFP journalist said. Security forces clashed with students who had barricaded several streets in the Cocody neighbourhood where the Felix Houphouet-Boigny University is located. Tensions are running high before the October 31 election when President Alassane Ouattara is seeking a third term. Critics say Ouattara's bid breaks with constitutional limits, though he says a 2016 reform allows him to run again by resetting the limit on the number of terms. ck-pgf/gd/pma