US officials have been open to selling the F-35 to the United Arab Emirates after it and Bahrain normalized relations with Israel on Sept. 15. But they have been tight-lipped on Qatar’s bid.

Azerbaijan on Sunday shot down another Armenian Su-25 fighter jet, according to the country’s Defense Ministry – the second Su-25 to be downed in as many days, Anadolu Agency reports.

The United Nations said Saturday that 50 countries have ratified a U.N. treaty banning nuclear weapons, paving the way for its entry into force on Jan 22, a move praised by anti-nuclear activists but opposed by the United States and other nuclear powers.