Watch: A Massacre in Iran, Part Three - Mashhad, Najafabad and Isfahan

Iran’s ambassador to the United Nations said Tehran, in separate letters to the UN secretary-general and the Security Council, urged the United Arab Emirates, Saudi Arabia, Qatar and Kuwait to prevent the use of their territories for attacks against the country.

“Iran has expressed its strong and unequivocal protest against the aforementioned illegal actions and strongly calls on the United Arab Emirates, Saudi Arabia, Qatar and Kuwait to observe the principles of good neighborliness and to prevent the continued use of their territories against the Islamic Republic of Iran,” state media quoted Amir Saeid Iravani as saying.

He added that Iran reserves the right to take all necessary measures, including self-defense, to protect its sovereignty and territorial integrity.

US President Donald Trump said the United States would soon determine whether Iran’s parliament speaker Mohammad Bagher Ghalibaf is willing to work with Washington, the New York Post reported.

“We’re gonna find out,” he said when asked about Ghalibaf.

“I’ll let you know that in about a week,” he added.

Iran's foreign minister in a phone call with his French counterpart on Monday said Tehran would continue its attacks against what he called aggressors, including military bases and facilities located in regional countries.

“We emphasize the continuation of Iran’s defensive operations against aggressors, including their military bases and facilities that are stationed in the territory of countries in the region,” Abbas Araghchi said.

“The reason for Iran’s defensive operations in the region is the United States’ use of the territory, bases and facilities located in these countries to carry out an illegal war against Iran,” he added.

“Any provocative action by aggressors and their supporters, including in the United Nations Security Council regarding the situation in the Strait of Hormuz, will only make the situation more complicated,” he said.

The Council of the European Union said on Monday it had extended its sanctions regime over serious human rights violations in Iran until April 13, 2027, citing ongoing concerns over repression and abuses.

“The Council today decided to extend EU restrictive measures responding to serious human rights violations in Iran until 13 April 2027,” the Council of the EU said in a statement.

The sanctions list now includes 262 individuals and 53 entities, after one deceased individual was removed, the statement added.

The EU first introduced the sanctions regime in 2011 and has extended it annually, expanding measures in recent years amid concerns over rights violations.

“Get used to the new order in the region," IRGC Quds Force commander Esmail Qaani said in a post on X on Monday.

He said that attacks by Iran-aligned groups had undermined what he described as Israeli Prime Minister Benjamin Netanyahu’s plans to expand a regional security belt, warning that a new regional order was emerging.

“Netanyahu dreamed of expanding a security belt in the region, but the smart and courageous fire of our brothers in Hezbollah in the north and Ansar Allah in the south exposed the regime’s false assurances,” he wrote.

“The dream of the martyred commanders of the resistance has been realized: the war room of the axis of resistance is one.”