They issued 13 demands to Qatar that they said must be met to lift their blockade of the country, including the disbanding of the news channel Al Jazeera.
The four Arab nations embroiled in a diplomatic crisis with Qatar have dismissed Doha's response to their demands as "not serious", and have pledged to continue to keep the Gulf state under political and economic sanctions until it changes its policies.
Egyptian Foreign Minister Sameh Shukri told reporters at a joint news conference in Cairo that Qatar's response was "generally negative" and failed to "lay the foundation for Qatar's reversal of the policies it pursues".
In a further escalation, Bahraini Foreign Minister Sheikh Khalid bin Ahmed bin Mohammed Al Khalifa declared that any suspension of Qatar's membership in the Gulf Cooperation Council (GCC) would be decided "by the GCC alone", suggesting that Doha's expulsion from the six-member council could be imminent.
Qatari officials have repeatedly said the demands are so draconian that they suspect the four countries never seriously meant to negotiate them, and were instead seeing to hobble Doha's sovereignty.
Saudi Arabia and its allies have not revealed what steps they could take next, but there are fears of a wider embargo that would hurt the Qatari economy, with credit ratings agency Moody's announcing it was changing Qatar's outlook to negative over the crisis.
While an economic blockade is ongoing, Foreign Minister Sheikh Mohammed bin Abdulrahman Al Thani told that "Qatar continues to call for dialogue" and stressed that "any threat to region is threat to Qatar".
They added that it is no longer possible to tolerate the destructive role being played by Doha.
But their initial reaction was to characterize the document as "negative".
He also said, "In respect to future measures, we are in constant communication".
Ambassador Abdullah Bin Yahya Al Mu'allemi, the Permanent Representative of Saudi Arabia to the United Nations in NY, released a statement in which he stressed that both Qatar and Iran have supported terrorist groups in the Middle East for at least the last 20 years.
They placed 59 individuals and 12 groups with alleged links to Qatar on terrorism lists.
Kaabi said Qatar wanted the production increase to be carried out through a joint venture with worldwide companies. They later extended the deadline by another 48 hours at the request of Kuwait, which has acted as a mediator to resolve the crisis.
Qatar accused them of "clear aggression" today and said the accusations "were clearly designed to create anti-Qatar sentiment in the West". Erdoğan said the same terms were presented to Saudi Arabia for Turkey to build a base in the kingdom, but Riyadh "wanted time to think it through".
The countries suspended diplomatic relations and cut off land, sea and air travel to Qatar in early June. The allegation has been rejected by Doha as "baseless".
Following the row with its Arab neighbors, Qatar received assurances of "unconditional support" from Turkish President Recep Tayyip Erdogan.
Egyptian President Abdel Fattah al-Sisi spoke with US President Donald Trump by telephone about Qatar, Sisi's office said on Wednesday.
The White House said Trump reiterated the need for all countries "to stop terrorist financing and discredit extremist ideology".