 Provisional election results are showed on Monday that Chad's leader Idris Derby has won his sixth term as president. The 68-year-old Derby took 79.3% of the vote from the April 11 election after top opposition leaders boycotted to protest his effort to extend his 30 years in power. Leaders had gathered in Jemaina for the president's victory speech but his party said he had instead gone to visit Chadian soldiers on the front lines. Derby came to power in a rebellion in 1990. He's one of Africa's longest-serving leaders and a close ally of Western powers battling Islam's militant in West and Central Africa.