Ukraine has banned entry to its territory for all Russian males aged between 16 and 60, the Russian flagship carrier Aeroflot said on Thursday in a warning to passengers. “In line with an official order received by the company, all Russian male citizens aged from 16-60 will be refused entry into Ukraine,” Aeroflot said, adding that exceptions would only be made in extreme cases such as the death or illness of a relative. The ban also applied to men aged 16-60 and women aged 20-35 travelling on Ukrainian passports registered in Crimea, which was annexed by Russia last month, Aeroflot added.