Starting next month, travelers using Thailand's airports will be banned from carrying bottled water on planes and pack all liquid toiletries, aerosols and gels in transparent bags, according to Chaisak Angkasuwan, director-general of the Department of Civil Aviation. The restrictions are in line with security guidelines recommended by the International Civil Aviation Organization, following the UK's discovery in August of a plot to bring down U.S.-bound flights with liquid-based explosives.