(FILES) - A file picture taken on April 28, 2012 shows Al-Qaeda in the Arabian Peninsula (AQAP) chief Nasser al-Wuhayshi (Wahishi) in the militant stronghold town of Jaar, in Yemen's southern Abyan province. US officials are reportedly working to confirm claims that Al-Qaeda's top leader in Yemen was killed in a CIA drone strike last week, as the country's warring factions prepare for a second day of peace talks in Geneva on June 16, 2015. AFP PHOTO / STR