Kiev, 22 February: Two US nationals were detained at Boryspil [Kiev international] airport while trying to carry 1 kg of heroin out of Ukraine. UNIAN learnt at the public relations department of the Ukrainian State Customs Service that Boryspil customs and Security Service of Ukraine officials discovered four transparent polyethylene bags with white powder during a customs inspection of two US nationals. The bags were not declared during verbal questioning in the "green channel". The bags were discovered during a personal search in the inspection room and were hidden in the shoe soles. A quick study of the substance, performed by the police, revealed that the powder was heroin. Its total weight was about 1 kg. The [US] nationals were booked on an Uzbek Airlines flight from Ukraine to the USA.