Included on the list were Doha-based Muslim Brotherhood spiritual leader Yusuf al-Qaradawi and Qatari-funded charities. One is the brother of the Gamaa Isalmiya assassin who killed Egyptian leader Anwar Sadat in 1981.
It is unclear how the standoff will be resolved, but the Saudis and their neighbours are making a clear play for Western support, accusing Qatar's government of backing terror groups including Al-Qaeda and ISIS.
Qatar faced a similar crisis in 2014 that saw Arab countries pull their ambassadors from the country. The sole Yemeni, Abdel-Wahab al-Humayqani, is the leader of a Salafi party whose has been accused by the US of financing al-Qaida in the Arabian Peninsula, the terror group's branch in Yemen.
Russian officials on Wednesday denied allegations that Russian hackers breached Qatar's state news agency and planted a fake news story that led to a split between Qatar and the other Arab nations.
- Jordan announced it is scaling back its diplomatic ties with Qatar and that it will close the local office of the Gulf nation's Al Jazeera TV channel.
"We are in talks with Turkey and Iran and other countries", said the official, who spoke on condition of anonymity due to the sensitivity of the subject, adding that the supplies would be brought in through Qatar Airways cargo flights.
But in the last few months, there has been a relationship growing between Qatar and Iran, evident by the fact that Emir Sheikh Tamim bin Hamad Al-Thani while conversing with Iranian President Hassan Rouhani, had said that he wanted better bilateral relations between the nations.More news: May's grip on power in doubt as United Kingdom election heads for stalemate
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The UAE attorney general said Wednesday that "any participation in conversation or social media or any other means that demonstrates sympathy to Qatar. may face a prison sentence of three to 15 years and a fine of no less than 500,000 dirhams ($136,000)".
"If anyone thinks they are going to impose anything on my internal affairs or my internal issues, this is not going to happen", Sheikh Mohammed said.
On Tuesday, the minister maintained his country was a victim of hacking. Saudi Arabia has also been criticized, for example, for its support of hardline Islamist factions in Syria.
Also on Thursday, Sisi met with French Foreign Minister Jean-Yves Le Drian who is now on a visit to Egypt.
Gargash said Qatar "definitely" should expel members of Hamas, stop its support of terror groups "with al-Qaida DNA" around the world and rein in the many media outlets it funds, chief among them the Doha-based satellite news network Al-Jazeera.
An outspoken Emirati ruling family member, the writer and political analyst Sultan Sooud Al Qassemi, even raised the prospect Wednesday of Qatar's leadership changing.
Kuwait is trying to mediate in the conflict and US Secretary of State Rex Tillerson on Monday offered Washington's help in resolving the dispute, but Trump himself had not offered to become involved as a mediator until now.