Mohammed bin Abdulrahman Al Thani

Two of the world's largest energy producers, Qatar and Russia, on Aug. 30 vowed to increase trade ties at a time when the emirate is facing an economic boycott from neighboring states.

Qatar has said that the demands put forward by four Arab states were "made to be rejected" and once again denounced them as an infringement on its sovereignty. It also said it does not fear any retaliatory measure that could follow its refusal to comply with the demands.

Commenting on a U.S. ban on entry affecting seven countries, Ivica Dacic said Serbia doesn't want to interfere in the internal affairs of sovereign countries.

Qatari Foreign Minister Sheikh Mohammed bin Abdulrahman Al Thani, who spoke during a joint news conference with his Serbian counterpart in Belgrade on Monday, said that he believes that the U.S. will reconsider the move.