Turkey is a key ally of Qatar and is setting up a military base in the country which also hosts the largest US air base in the Middle East.
Saudi Arabia, Egypt, the United Arab Emirates (UAE) and Bahrain severed relations with Qatar and closed their airspace to commercial flights on Monday, accusing it with financing extremist groups.
Qatar vehemently denies the accusations. It is the worst split between powerful Arab states in decades.
Turkish President Tayyip Erdogan has criticised the Arab states’ move, saying isolating Qatar and imposing sanctions will not resolve any problems and adding that Ankara will do everything in its power to help end the crisis.