Saudi Arabia, the United Arab Emirates (UAE) and several other Sunni-majority countries have severed relations with Qatar since June 5, accusing the Gulf state of supporting terrorism based on its ties with the Muslim Brotherhood, Hamas and the Taliban.
Another point of departure is Qatar’s ties with Iran, with whom it shares one of the world’s biggest gas fields.
Qatar has denied the accusations and called the collective decision "unjustified." Kuwait, Turkey and the US have all urged a political solution as the bloc isolates Qatar using various ad hoc sanctions, including shutting down their airspace to Qataris and blocking import routes.
The dispute began in May when Qatar's Emir Sheikh Tamim bin Hamad al Thani was reported to have made statements on the state news agency supporting Iran. Doha said the statements were fabricated and disseminated via a hack.
Here are the latest developments in the crisis:
June 27, Tuesday
Tillerson to meet Qatari counterpart in Washington
US Secretary of State Rex Tillerson will meet with his Qatari counterpart on Tuesday in Washington, after the US department voiced confusion over the Saudi-backed embargo of the country.
Tillerson's meeting with Qatari Foreign Minister Sheikh Mohammed bin Abdulrahman al Thani at the State Department also comes days after Doha dismissed a list of demands from Bahrain, Egypt, Saudi Arabia and the United Arab Emirates.
Tillerson has urged a diplomatic solution, and Washington has been pushing for a clear list of grievances that are "reasonable and actionable."
Signalling Washington's mounting frustration at Riyadh's role in the crisis, State Department spokeswoman Heather Nauert recently called on the parties to settle their differences.
For more on previous developments click here.