Qatar Airways is set to buy a 25 percent share in Russia's Vnukovo International Airport, one of the four major airports which serves the capital, Moscow.
Akbar al-Baker, the national carrier's chief executive, made the announcement on Monday, according to a report by Russia's news agency Interfax.
The deal - the financial details of which were not yet disclosed - comes as Qatar's Emir Sheikh Tamim bin Hamad Al Thani is on a short work visit to Moscow.