Saudi Arabia's foreign minister said on Friday a resolution to a bitter dispute with Qatar seemed "within reach" after Kuwait announced progress towards ending a row that Washington says hampers a united Gulf front against Iran.

The United States and Kuwait have worked to end the dispute, during which Saudi Arabia, the United Arab Emirates, Bahrain and Egypt have imposed a diplomatic, trade and travel embargo on Qatar since mid-2017.

U.S. President Donald Trump's senior adviser Jared Kushner had held talks in Doha on Wednesday following a visit to Saudi Arabia.