Doha - U.S. Secretary of State Rex Tillerson left Qatar Thursday after a tour of Gulf Arab countries aimed at easing the regional dispute, but made no comment on whether any progress had been made in resolving the month-long crisis. Tillerson declined questions after meeting Qatar's emir, Sheikh Tamim bin Hamad al-Thani, to discuss Doha's feud with four Arab states that cut diplomatic ties with it on June 5 over allegations it funds extremist groups and is interferying in other countries' internal affairs. "Hope to see you again under better circumstances," the emir's brother, Sheikh Mohammad bin Hamad al Thani said, seeing Tillerson off at the airport in Doha. Tillerson has been shuttling between Qatar, Saudi Arabia and mediator Kuwait since Monday trying to break the impasse, though officials have been careful to downplay expectations and caution any resolution could be months away.