 About 70% of visitors arrived by land in 2002, about 29% by air and less than 1% by sea.In April 2005 the Imam Khomeini International Airport was reopened under the management of a consortium of four local airlines—Mahan Air, Aseman, Caspian Air and Kish Air—although no formal contract appeared to have been awarded.In the early 2000s the industry still faced serious limitations in infrastructure, communications, regulatory norms, and personnel training.