Britain on Monday urged Gulf states including Saudi Arabia to ease a blockade of Qatar and to find an immediate solution to the impasse through mediation.

Qatar's normally bustling desert border with Saudi Arabia was eerily quiet on Monday, with a few dozen frustrated travelers bemoaning a rift between Gulf powers that has frozen movement across Qatar's only land border.

Kuwait's emir, who has led mediation efforts this week to resolve the Gulf's worst diplomatic row in years, cautioned on Monday that the dispute could lead to "undesirable consequences", in comments carried by state news agency KUNA.

Qatar is ready to listen to the concerns of Gulf Arab states that have cut diplomatic and economic ties, Kuwait said on Sunday, as it tried to mediate a solution to the worst regional crisis in years.

Saudi Arabia, Bahrain and the United Arab Emirates announced hotlines to help families with Qatari members, their official news agencies reported, after their cutting of diplomatic and transport ties with Qatar led to travel disruption.

A Saudi soldier was killed and two members of the security forces wounded when an explosive device went off during a patrol in the Kingdom's eastern Qatif province, the Interior Ministry said on Monday.

A Qatari newspaper criticized the absence of the Secretary General of the Gulf Cooperation Council (GCC) Abdullatif Al-Zayani from the crisis witnessed in the Gulf since about a week, after 3 states surprisingly cut their ties with Doha.

Rashed al-Jalahma, 22, has lived almost his whole life in Qatar, but he now faces the decision of whether to stay or return "home" to Bahrain.

Nationals of countries that cut diplomatic ties with Qatar this week are free to remain in the Gulf state in line with existing regulations.

Iran has sent four cargo planes of food to Qatar and plans to provide 100 tonnes of fruit and vegetable every day, Iranian officials said, amid concerns of shortages after Qatar's biggest suppliers severed ties with the import-dependent country.

Iraq still has hundreds of millions of dollars sent by Qatar to secure the release in April of members of the Qatari ruling family abducted in 2015, Iraq's prime minister said on Sunday.

Turkish President Tayyip Erdogan told Bahrain's Foreign Minister that the dispute between Qatar and other Arab states should be resolved by the end of the holy month of Ramadan, Turkish Foreign Minister Mevlut Cavusoglu said on Saturday.

German Chancellor Angela Merkel said on Friday she was concerned about the situation in Qatar, adding that all Gulf nations, and also Iran and Turkey, should work together to resolve the regional dispute.

Russian foreign minister Sergei Lavrov told Qatar on Saturday of its concern over Arab nations cutting ties with the Gulf state and called for talks to solve the crisis.

The dispute between Qatar and other Arab states could lead to war, German Foreign Minister Sigmar Gabriel told a newspaper on Saturday, adding that he still saw a chance to defuse the tension.

Amnesty International warned Saturday of the "heartbreak and fear" being suffered by potentially thousands of ordinary individuals because of the political dispute in the Gulf that has isolated Qatar.

Iranian authorities have arrested seven people suspected of helping militant

Central Bank of the United Arab Emirates issued Friday two notices to order banks in the UAE on transactions with Qatari banks to freeze accounts related to an issued "terrorism" list.

The ostracism of Qatar by other powerful Arab states is deepening divisions between their respective allies vying for influence in wars and political struggles from Libya to Yemen.

Niger said on Saturday it had recalled its ambassador to Qatar in solidarity with Arab countries that have cut ties with Doha over allegations it sponsors Islamist militants and Iran.