And in a readout of a conversation with Qatar's emir, Iranian president Hassan Rouhani said that "pressure, threats and sanctions" will not help resolve the crisis, adding that the "siege of Qatar is not acceptable for us".
U.S. Secretary of State Rex Tillerson issued a statement Sunday describing some elements of this list as "very hard for Qatar to meet", but he added that there are still "significant areas which provide a basis for ongoing dialogue leading to resolution". As long as the Gulf stalemate continues, Tehran has promised to provide air, sea and land support to its "brother" country.
The council is an alliance of six Middle Eastern countries, including Qatar, Saudi Arabia, the United Arab Emirates, and Bahrain.
On June 5, Saudi Arabia, Bahrain, the UAE, Egypt and several other nations abruptly announced that they were severing diplomatic ties and transportation links with Qatar, accusing it of financing terrorism and interfering in the internal affairs of other states.
On June 22, Kuwait delivered a list of 13 demands that it said Qatar must fulfil within 10 days for the blockade to be lifted.More news: Opposition up in arms against Centre over Presidential nominee Kovind
The Iranian president also highlighted the significance of unity and integrity in the Muslim world and said Tehran and Doha can undoubtedly cooperate with each other in this field.
Turkish President Recep Tayyip Erdogan immediately vowed to support Qatar and vehemently rejected the accusations - already strongly denied by Doha - that Qatar supports terrorism.
While the Qatari Foreign Ministry has yet to issue an official reply, the director of the government's communications office, Sheikh Saif Al-Thani, called the Gulf States' demands "unrealistic" and said they were aimed at limiting Qatar's sovereignty. Kuwait handed the list of collective demands to Doha on Thursday, according to Qatar News Agency.
According to media reports, demands include the closure of Al Jazeera, the downgrading of Qatar's ties with Iran, shutting down Turkish military base in the country, and the extradition of "terrorists" from the country. Among the key points of the ultimatum is the demand to cut ties with Iran.
On Sunday, Turkish President Recep Tayyip Erdogan expressed his "unconditional support" for Qatar and denounced the Gulf States' demands as running "contrary to worldwide law".