Russian jet intercepts USA bomber MORE (R-Tenn.), chairman of the Senate Foreign Relations Committee, was left stunned and speechless when told by reporters of Trump's tweets. It imports nearly all of its food, about 40 percent of it directly from Saudi Arabia.
During his first foreign trip last month, Trump spent several days in Saudi Arabia with King Salman, pressing a message of unity in the face of extremism to Arab and Muslim leaders and urging Gulf countries to halt the funding of extremist and terror groups.
"During my recent trip to the Middle East I stated that there can no longer be funding of Radical Ideology", he wrote. "Leaders pointed to Qatar - look!" "Perhaps this will be the beginning of the end to the horror of terrorism", Trump said in a series of tweets.
Around 10,000 military personnel are stationed at U.S. airbase Al-Udeid in Qatar.
Mauritania has become the latest country to cut diplomatic relations with Qatar as part of a growing rift between the energy-rich Gulf nation and other Arab countries.
Al Jazeera did not focus on the statements and comments coming out of those countries, instead giving air time to the United States and Turkish foreign ministers and an adviser to Iranian President Hassan Rouhani - all urging dialogue.
Spokespeople didn't reject or affirm the president's tweets.
The chief executive of Qatar Airways, Akbar al Baker, also a board member of IATA, left the aviation summit early to tackle the emerging crisis at home.
Yemen, Libya's eastern-based government and the Maldives joined in later - opening up one of the worst rifts in years.
In announcing it was cutting ties, Riyadh accused Doha of harbouring "terrorist and sectarian groups that aim to destabilise the region including the Muslim Brotherhood, Daesh (IS) and Al-Qaeda".
Yet a prolonged crisis will put significant pressure on Qatar.More news: Led coalition strikes pro-Syrian regime forces
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The air route between Doha and Dubai is popular among business travelers, and both are major transit hubs for travelers between Asia and Europe.
Davis declined to comment directly on the president's tweets, saying "we have no plans to change our posture in Qatar" and that the Pentagon is grateful to Qatar for hosting al-Udeid Airbase. It puts diplomats in a very awkward position and means a lot of our diplomats are not going to be saying very much at all. "It's a tough environment in which to be practicing the art of foreign relations".
"Terror financing is across the whole globe".
"However, let me make this clear: They have made progress, but they still have work to do".
"Trying to isolate Qatar, which certainly carries out an efficient fight against terrorism, will not resolve any problems".
Foreigners living in Qatar with residence visas will no longer be eligible for visas on arrival into the United Arab Emirates, a spokesman for Etihad Airways added.
Some lawmakers have been critical of Qatar.
"I think this is very risky", said Rep. Ted Yoho of Florida on CNN.
Funded by Qatar's royal family, Wadah Khanfar, a Palestinian journalist who was director general of the network between 2006-2011, helped turn the Arab satellite channel into a world network with millions of viewers and more than 20 channels broadcasting in languages including Arabic, English and Swahili.