Trump’s call with Putin lasted nearly an hour, according to Russian presidential aide Yuri Ushakov, who said the US president emphasized the need to end hostilities and was prepared to encourage European allies and Kyiv toward that goal.

Ushakov said Putin argued that Ukrainian attacks on Russian civilian infrastructure would not alter the battlefield situation and said that if Zelensky wanted to meet, he should travel to Moscow.

The discussions also included Iran, with Trump saying an agreement with Tehran was close and that details could soon be made public, Ushakov said.

Zelensky said he had a “wonderful conversation” with Trump and thanked him for supporting Ukraine. He said the two leaders discussed steps that could help move toward peace and agreed to continue discussions during the G7 summit.

The diplomatic contacts came as fighting continued. Ukrainian drone attacks killed two people in Russia’s Oryol and Bryansk regions, according to local authorities. A separate drone strike hit fuel storage facilities in Russia’s Yaroslavl region, causing fires.

Zelensky said the Yaroslavl strike targeted an oil facility important to Russia’s reserves. Ukraine has increased attacks on Russian energy infrastructure, arguing that the sector supports Moscow’s war effort.

The calls took place as Trump prepared to travel to France for the G7 summit, where Ukraine is expected to be a major issue. Zelensky is scheduled to join discussions with world leaders.

The conflict has remained a challenge for Trump, who previously said he could end the war quickly but has since shifted focus toward broader diplomatic efforts.

Separately, British Prime Minister Keir Starmer said the United Kingdom detained a tanker suspected of being part of Russia’s “shadow fleet,” vessels accused of helping evade sanctions linked to the war.

British forces boarded the tanker Smyrtos in the English Channel in cooperation with French authorities. Starmer said the operation was aimed at increasing pressure on Russia over its invasion of Ukraine.

The dispute follows the EU’s decision on Monday to expand the mandate of Operation IRINI, a naval mission established to enforce the United Nations arms embargo on Libya. Under the revised mandate, EU military vessels operating in the Mediterranean will be able to stop and inspect foreign ships suspected of circumventing sanctions through the transport of Russian oil.

Russian Foreign Ministry spokeswoman Maria Zakharova said the move represented a threat to maritime security and accused the EU of attempting to intimidate civilian shipping under the guise of sanctions enforcement.

“The European Union’s deployment of ships from the IRINI naval operation in the Mediterranean to inspect or seize, as they now say, vessels carrying oil products would constitute a flagrant violation of international law,” Zakharova told a briefing in Moscow.

Zakharova rejected the EU’s characterization of a Russian-linked “shadow fleet,” describing the term as a political construct rather than a recognized legal category under international law. She argued that the planned inspections lacked a valid legal basis and risked undermining established principles governing international navigation.

She said Russia reserved the right to employ “the full arsenal of political, legal, and other instruments” to safeguard maritime security and protect the interests of shipowners and commercial operators involved in the transportation of oil products.

The EU has increasingly targeted vessels it believes are helping transport Russian oil outside Western sanctions frameworks imposed following Moscow’s actions in Ukraine. European officials have argued that tighter monitoring of tanker activity is necessary to strengthen sanctions enforcement and reduce opportunities for evasion.

The latest disagreement highlights growing tensions between Moscow and Brussels over the implementation of sanctions and the policing of maritime trade routes, particularly in areas where commercial shipping intersects with broader geopolitical disputes.

The Swedish Coast Guard boarded the 182-meter vessel Jin Hui on Sunday amid suspicions it was operating under a falsified Syrian flag, in what officials described as part of ongoing enforcement actions targeting ships believed to be circumventing Western sanctions on Russia.

The Swedish Prosecution Authority said the captain was detained on suspicion of using forged documents and breaching maritime safety regulations, specifically relating to inadequate seaworthiness. Prosecutor Adrien Combier-Hogg said the individual would be interrogated during the day, adding that coordination had been initiated with other national and international authorities.

Sweden’s Civil Defense Minister Carl-Oskar Bohlin said the vessel appears on sanctions lists maintained by the European Union, Britain and Ukraine, underscoring concerns that it may be linked to networks used to bypass restrictions imposed on Moscow following its invasion of Ukraine.

Western officials have increasingly focused on what they describe as a “shadow fleet” of aging, poorly insured vessels with opaque ownership structures, used to transport Russian oil and other commodities outside formal regulatory frameworks. These ships have raised safety and environmental concerns due to their condition and lack of oversight.

Sweden has conducted several recent boardings of vessels in its surrounding waters as part of broader efforts to enforce sanctions compliance and maritime safety standards in the Baltic region.

U.S. Central Command said the vessel, identified as the Sevan, was intercepted by a Navy helicopter launched from the guided-missile destroyer USS Pinckney during operations aimed at enforcing restrictions on Iranian oil and gas shipments.

The military described the Sevan as part of a 19-vessel “shadow fleet” accused of transporting Iranian petroleum products, including oil, propane and butane, to foreign markets in violation of U.S. sanctions.

According to Central Command, the ship complied with orders to reverse course and is now heading back toward Iran under U.S. escort.The interception marks the latest maritime enforcement action under a U.S.-led blockade intended to restrict Iranian energy exports and reduce revenue flows to Tehran amid heightened regional tensions.

U.S. officials said the targeted fleet had been sanctioned by the United States Department of the Treasury for facilitating the transport of billions of dollars’ worth of Iranian energy products through covert shipping networks often involving opaque ownership structures and flag changes.

“These vessels are part of a sanctions evasion network designed to conceal the origin and destination of Iranian exports,” Central Command said in its statement.Since the start of the blockade, the U.S. military said 37 vessels have been redirected, reflecting an expanded effort to enforce sanctions through direct maritime interdiction rather than financial restrictions alone.

The Arabian Sea has become a focal point for such operations due to its strategic role in shipping routes connecting the Gulf, South Asia and global energy markets.Washington has increased pressure on Iranian oil exports as part of broader efforts to constrain Tehran’s regional influence and funding channels, particularly amid ongoing instability across the Middle East and heightened tensions involving U.S. forces in the region.

Iran has repeatedly criticized U.S. maritime sanctions enforcement as unlawful and has accused Washington of disrupting freedom of navigation and international trade.

The latest interception comes as scrutiny of tanker movements linked to Iran has intensified, with governments and shipping regulators monitoring so-called shadow fleets used to bypass sanctions through ship-to-ship transfers and concealed cargo documentation.

No injuries or military confrontation were reported during the interception of the Sevan, and Central Command did not specify the vessel’s final destination before it was ordered to turn back.