The head of the UN nuclear watchdog, Rafael Grossi, will arrive in Tehran on Wednesday for discussions with senior Iranian officials, state media reported, ahead of new round of talks between Iran and the United States.

During his visit, Grossi is set to meet Iranian Foreign Minister Abbas Araghchi and Mohammad Eslami, head of the Atomic Energy Organization of Iran (AEOI), the state news agency IRNA reported on Monday, citing Deputy Foreign Minister Kazem Gharibabadi.

President Donald Trump bitterly attacked "60 Minutes" shortly after the CBS newsmagazine broadcast stories on Ukraine and Greenland on Sunday, saying the network was out of control and should "pay a big price" for going after him.

"Almost every week, 60 Minutes ... mentions the name 'TRUMP' in a derogatory and defamatory way, but this Weekend's 'BROADCAST' tops them all," the president said on his Truth Social platform. He called on Federal Communications Commission Chairman Brendan Carr to impose maximum fines and punishment "for their unlawful and illegal behavior."

Russian missiles struck the heart of the Ukrainian city of Sumy as people gathered to celebrate Palm Sunday, killing at least 34 people, officials said, in the second large-scale attack to claim civilian lives in just over a week.

The two ballistic missiles hit around 10:15 a.m., officials said. Images from the scene showed lines of black body bags on the side of the road, while more bodies were seen wrapped in foil blankets among the debris. Video footage also showed fire crews fighting to extinguish the shells of burned-out cars among the rubble from damaged buildings.

The next round of indirect talks between the United States and Iran over Tehran's nuclear program will be held in Rome, the Dutch foreign minister and a second diplomatic source said Monday.

Dutch minister Caspar Veldkamp said at an EU meeting that the talks will take place in the Italian capital, while two diplomats based in the city confirmed that information and said they would happen on Saturday.

Russian Foreign Minister Sergei Lavrov will meet his Iranian counterpart Abbas Araghchi in Moscow, Russian state agencies said Monday, citing the foreign ministry.

"We are expecting Iranian colleagues, talks with Sergei Lavrov as well as meetings with Russian officials are planned," Russian foreign ministry spokeswoman Maria Zakharova said, after Iran announced that its top diplomat was heading to Moscow later in the week.

The United States wants a nuclear agreement "as soon as possible", Iran said after rare talks on Saturday, as U.S. President Donald Trump threatens military action if they fail to reach a deal.

The long-term adversaries, who have not had diplomatic relations for more than 40 years, are seeking a new nuclear deal after Trump pulled out of an earlier agreement during his first term in 2018.

U.S.-Iran talks on Saturday in Oman marked a "step forward" between the two adversaries, the White House said, describing discussions including President Donald Trump's regional envoy as "positive and constructive."

Iranian Foreign Minister Abbas Araghchi said Saturday his country seeks a "fair and honorable" deal with the United States, hours before the start of talks between the two sides.

The United States and Iran begin high-stakes talks on Tehran's nuclear program on Saturday, with President Donald Trump threatening military action should they fail to produce a new deal.

Russian President Vladimir Putin began talks with U.S. President Donald Trump's envoy Steve Witkoff in Saint Petersburg on Friday, the Kremlin said.

Moscow released footage of Putin greeting Witkoff and earlier said the pair would discuss the Ukraine conflict, but that no breakthrough was expected.