DUBAI - Iran has built an advanced drone that can take off vertically and without a runway, Iranian media reported.Iran's military regularly announces defense and engineering developments, though some analysts are skeptical of the reliability of such reports.Abbas Jam, researcher on a project for a vertical take-off and landing (VTOL) drone, said on Saturday that the drone would be tested that day and "unveiled" next year, according to Iran's Mehr news agency.The unmanned aircraft "enjoys ultra-advanced technology and has been built for the first time in the world," Jam said, according to Mehr.