Qatar filed a wide-ranging legal complaint at the World Trade Organization to challenge a trade boycott by Saudi Arabia, Bahrain and the UAE.
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:
Qatar launches wide-ranging WTO complaint against trade boycott
Qatar filed a wide-ranging legal complaint at the World Trade Organization on Monday to challenge a trade boycott by Saudi Arabia, Bahrain and United Arab Emirates, the director of Qatar's WTO office Ali Alwaleed al Thani said.
By formally "requesting consultations" with the three countries, the first step in a trade dispute, Qatar triggered a 60-day deadline for them to settle the complaint or face litigation at the WTO and potential retaliatory trade sanctions.
"We've given sufficient time to hear the legal explanations on how these measures are in compliance with their commitments, to no satisfactory result," al Thani said.
"We have always called for dialogue, for negotiations, and this is part of our strategy to talk to the members concerned and to gain more information on these measures, the legality of these measures, and to find a solution to resolve the dispute."
The boycotting countries have previously told the WTO that they would cite national security to justify their actions against Qatar, using a controversial and almost unprecedented exemption allowed under the WTO rules.
For more on earlier developments click here.