Al-Jazeera offices have been shut down by authorities in Saudi Arabia and Jordan.
Responding to the list overnight, Qatar issued a statement saying: "We do not, have not and will not support terrorist groups". Qatar has always been the host of the largest United States military base in the Middle East, and the regional blockade is greatly complicating that base's operation.
Qatar denies it backs extremist groups and says the allegations are politically motivated and meant to tarnish the country's image.
He said Qatar, as an independent nation, also had the right to support groups like the Muslim Brotherhood, despite the fact that its neighbors outlawed the Sunni Islamist organization.
"[Kuwait] affirms the readiness of the brothers in Qatar to understand the reality of the qualms and concerns of their brothers and to heed the noble endeavors to enhance security and stability", Kuwait's state news agency KUNA quoted Foreign Minister Sheikh Sabah al-Khalid al-Sabah as saying. He was speaking as his Bahraini counterpart met with Turkey's president in Ankara.
Qatar is not ready to change its foreign policy to resolve a dispute with fellow Gulf Arab states and will never compromise, Qatar's foreign minister said on Thursday.
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"The state of Qatar, in accordance to its firm beliefs and principles, works on avoiding political conflicts with states and governments when dealing with their people", the ministry said. All except Bahrain barred Qatari flights from their airspace, compelling Qatar Airways to use longer routes over Iran.
The land border with Saudi Arabia, through which 40% of Qatar's food comes, has been closed. Though the president said others, too, were guilty of supporting terrorism, he said he would not name them.
Energy giant Qatar Petroleum said in a statement on Saturday that it was "business as usual" despite a spiralling diplomatic crisis involving Doha and its Gulf neighbours. Kuwait's ruler, meanwhile, is making an effort to help mediate. Jordan also announced Wednesday that Amman has chose to reduce its diplomatic status after studying reasons behind the tension between Cairo, Riyadh, Abu Dhabi and Manama with Qatar.
Only an hour later, Tillerson sat in the front row in the Rose Garden as Trump enthusiastically embraced the move by Saudi Arabia, Egypt and others to punish Qatar. Many Qataris also live in Bahrain, Saudi Arabia and UAE.
Mohammed al-Sada said in a statement: "circumstances in the region shall not prevent the state of Qatar from honouring its global commitment of cutting its oil production". He said 90 tons of vegetables already have been sent.
"There can be no justification for tearing families apart, suppressing peaceful expression, and leaving migrant workers abandoned and at risk", said Lynch.