Qatari Foreign Minister Mohammed bin Abdulrahman Al Thani arrived in Kuwait on Wednesday for an unscheduled visit amid a Gulf crisis triggered by the cut-off of ties between Doha and four Arab states.
In June, Saudi Arabia, Egypt, the United Arab Emirates and Bahrain severed diplomatic relations with Qatar, accusing Doha of supporting terrorism.
No details were yet available about the content of the minister's talks in Kuwait, which has been mediating to resolve the crisis.
Earlier this month, Kuwait's ruler sent messages to the leaders of the four countries boycotting Qatar, in a move seen by the media as a new Kuwaiti initiative to resolve the crisis.
The four states have imposed a sea, land and air embargo on Qatar and presented a list of demands for Doha or face further sanctions.
Qatar, for its part, denies the accusations and contends that the blockade is in violation of international law.