Qatar has particularly strong ties with China, Iran, Turkey, and the United States as well as a number of Islamist movements in the Middle East such as the Muslim Brotherhood. In June 2017, Saudi Arabia, the UAE, Bahrain, Egypt and Yemen broke diplomatic ties with Qatar, accusing Qatar of supporting terrorism. The crisis escalated a dispute over Qatar's support of the Muslim Brotherhood, which is considered a terrorist organization by some Arab nations.  The diplomatic crisis ended in January 2021 with the signing of AlUla declaration.