Iran's Interior Minister Eskandar Momeni is set to travel to mediator Pakistan's capital on Monday, a Pakistani interior ministry source said.

The source confirmed to AFP that the minister would have talks with Pakistani officials but did not elaborate on whether it was linked to Pakistan's long-running mediation efforts to end fighting between the United States and Iran.

Iran urged the United Nations nuclear watchdog on Monday to condemn U.S. strikes that it said targeted the Darkhovin nuclear power plant under construction in the country's southwest.

"Iran... expects the IAEA (International Atomic Energy Agency) Board of Governors and the Director General of the IAEA, who from time to time makes political statements regarding the Iranian nuclear issue, to clearly state their position on this matter in condemning the U.S. crime," Iranian foreign ministry spokesman Esmaeil Baghaei said at a press conference in Tehran attended by AFP.

Iran said on Monday that diplomatic exchanges with the United States via mediators were ongoing despite U.S. military strikes on the country.

"We have been informed by mediators, we have received messages -- without going into details -- but the main point is that the diplomatic apparatus has been active in recent days and ideas have been conveyed to us by certain mediators," said Iranian foreign ministry spokesman Ismail Baghaei at a press conference in Tehran attended by AFP.

U.S. President Donald Trump has threatened to target Iran’s power stations and bridges to try to compel Tehran to loosen its hold on the Strait of Hormuz, which saw one-fifth of traded global oil supplies transit before the war. Recent attacks suggest the U.S. military is carrying out that plan.

The U.S. in the past week reimposed a naval blockade on Iranian ports to halt its shipments of crude oil. The military on Saturday said it had redirected six ships and disabled one since then.

The United States said airstrikes on Sunday aimed to "punish" Iran over the first U.S. military deaths since renewed hostilities with the Islamic republic.

Iran rapidly announced its own retaliation, saying two U.S. bases in Kuwait were targeted in response to more than a week of intensifying attacks -- which Tehran said included strikes on an airport, a railway station and bridges.

The U.S. State Department reported a major oil pipeline between Iraq and Syria, which has been closed for decades, will be restored by the two countries.

Iraq signed 48 agreements and partnerships with American companies, many in the oil sector, during a visit to the U.S. by Prime Minister Ali al-Zaidi, his office said Saturday.

Hostilities in the Middle East intensified on Saturday after a seventh straight night of U.S. attacks on Iran, with Tehran threatening a "full-scale offensive" in response and the strategic Strait of Hormuz remaining virtually closed.

Iran's health ministry said Friday that at least 38 people had been killed and more than 400 injured in the country since fighting resumed with the United States.

"The number of injured from US attacks has exceeded 400, and 38 compatriots have been martyred" since June 22, ministry spokesman Hossein Kermanpour posted on X. "Among them are 22 injured women, three martyred women, nine injured under the age of 18, and one martyr under 18."

China and Pakistan's foreign ministers called Friday for the United States and Iran to stop fighting and resume negotiations, according to a statement following a meeting in Shanghai.

China's Wang Yi and Pakistan's Ishaq Dar jointly "expressed concern over the deterioration of the current situation, calling on the involved parties to immediately cease hostilities... (and) return to dialogue", the statement by China's foreign ministry said.