"The flight was a routine scheduled flight, and its route is well known and complies with worldwide norms concerning approvals and permits", according to the statement released by GCAA.
The UAE condemned the Qatari action as "a serious and renewed breach of global conventions and the safety of civil aircraft traffic".
The UAE denied that Thani was being detained, calling him a "guest" who had "unrestrained mobility", according to a Foreign Ministry statement.
The video of Sheikh Abdullah bin Ali Al Thani recalled the weird, now-reversed resignation of Lebanese Prime Minister Saad Hariri while on a trip to Saudi Arabia, a November 4 decision that was widely seen as orchestrated by Riyadh.
Notably, the UAE is a member of a Saudi-led bloc of Arab states that collectively severed ties with Qatar past year for allegedly supporting terrorist groups in the region.
It later said a second flight to Bahrain was similarly intercepted. He said Bahraini radar, as well as crew and passengers on board, saw the military aircraft, "which constituted a clear and explicit threat to the lives of innocent civilians".
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Treasury also said that employers should withhold 22 percent for taxes on bonuses - lower than the current rate of 25 percent. They have ordered a review by the Government Accountability Office to determine whether the new tax guidelines are accurate.
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She felt someone behind her pull the hood of her winter jacket down and when she turned around and the man ran off. Khawlah and her brother chose to cross the road and walk with a bigger group of people.
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Vargas-Rosas was also pacing back and forth in the aisle and was in and out of the bus bathroom, Schmaling said. When he finally hit, that's when we were all hollering in the back "You need to stop".
Qatar denied as "completely untrue" the initial interception report, but did not immediately comment on the second.
The GCAA regarded this incident as "a renewed breach of global laws and conventions, and a flagrant and serious threat to the safety of civil aviation", a statement was quoted a saying by the official Wam news agency.
Qatar has denied the charges and accused the four countries of trying to make it conform to their foreign policy positions.
The ministry said the Qatari figure had come to Abu Dhabi at his own request as a guest after the Doha government placed restrictions on him.
"Sheikh Abdullah was received with generosity and he is free in his movements and expressed his desire to leave the country where all procedures were facilitated without any interference hindering this procedure", UAE's minister of foreign affairs and worldwide cooperation said in a statement, Arab News reports.
Al Suwaidi said that the Qatari side had neither shown prior objection to the use of the aircraft's path nor issued a warning after the use of the path.