MANAMA: A Bahraini appeals court on Monday toughened a prison sentence on the leader of the country’s main opposition group al-Wefaq, increasing his jail term to nine years from four, the group said on its website. Al-Wefaq rejected the ruling on Sheikh Ali Salman as “provocative” and said it blocked any chance of resolving a political crisis in the country. Salman has been serving a four-year jail term for inciting unrest.