Washington, 5 June 2025 (dpa/MIA) - US President Donald Trump sees no chance for an immediate resolution to the Ukraine war following another phone call with Russian President Vladimir Putin Wednesday.

"It was a good conversation, but not a conversation that will lead to immediate Peace," Trump posted on his Truth Social platform.

He said the call, which lasted about one hour and 15 minutes, dealt with "the attack on Russia's docked airplanes, by Ukraine, and also various other attacks that have been taking place by both sides."

"President Putin did say, and very strongly, that he will have to respond to the recent attack on the airfields," Trump wrote.

Putin's foreign policy advisor Yury Ushakov said the two leaders had discussed two main topics related to Ukraine, including what Moscow described as terrorist attacks against civilians and the outcome of the second round of Istanbul talks.

Ukraine had tried to disrupt talks in Istanbul by carrying out "targeted attacks on purely civilian targets," Ushakov said, adding that Putin had given Trump a detailed account of the outcome of the talks.

Moscow and Kiev are now studying each other's peace proposals before possibly continuing negotiations, he added.

Trump and Putin last spoke by phone in mid-May. The US president has repeatedly suggested a direct meeting between Putin and Ukrainian President Volodymyr Zelensky, offering to attend himself. However, such a meeting has not yet taken place.

Kiev's surprise attack

After months of preparation, Ukraine's intelligence service recently launched a large-scale strike on several Russian military airfields, which had been used to launch regular airstrikes against Ukraine.

More than 40 aircraft worth a total of $7 billion were destroyed in the attacks, including one near Irkutsk in Siberia, according to Ukraine's intelligence agency SBU. Russia has reportedly lost 34% of its strategic bomber fleet capable of launching cruise missiles. These claims have not been independently verified.

Talks between Ukraine and Russia

Representatives from Ukraine and Russia recently began direct talks in Turkey, mediated by the US, to explore a potential resolution to the conflict. However, Trump's repeated calls for an immediate end to the fighting have so far gone unheeded.

Putin separately rejected calls for a ceasefire in the war with Ukraine, whether for 30 or for 60 days.

"Why should they be emboldened by allowing them a break from fighting?" he queried. He also backed Foreign Minister Sergei Lavrov, who has said Russia should continue to hold talks with a view to achieving its war aims.

In Kiev, Zelensky offered an immediate ceasefire that should last at least until a meeting with Putin. If no de-escalation emerged from a meeting of this kind, "the ceasefire will end on the same day," he told journalists.

Zelensky rejected the memorandum put forward Monday by the Russian side in talks in Istanbul, in which it listed demands for an end to the war. He termed it an ultimatum. Russia's demands could not be met, in particular its territorial demands, he said.

Iran also a topic

Trump and Putin also discussed Iran's nuclear programme in their call.

"I stated to President Putin that Iran cannot have a nuclear weapon and, on this, I believe that we were in agreement," Trump wrote.

Trump said Putin "suggested" that he be included in the talks with Iran and that he could be helpful to seal a deal.

Prisoner swap foreseen

Moscow and Kiev could launch a large exchange of prisoners over the weekend, both sides have indicated.

Russian chief negotiator Vladimir Medinsky mentioned the days Saturday to Monday, TASS reported, while in Kiev, Zelensky referred to the coming weekend.

The first step foresees an exchange of 500 prisoners on each side.

During direct talks between the two sides in Istanbul, they agreed to exchange primarily younger troops, along with seriously injured or ill prisoners of war.

This could include more than 1,000 troops on each side. At the same time, thousands of bodies are to be returned from both sides.

Zelensky and Merz speak

Zelensky said he had spoken with German Chancellor Friedrich Merz on Wednesday, discussing agreements reached during Zelensky's visit to Berlin without providing further information.

"All of us in Europe need an end to this war and a truly reliable peace. This is very important," Zelensky said.

At the end of May, Merz said Germany would assist Ukraine in the production of long-range weapons.

Putin accuses Ukraine of terrorism following fatal train accidents

Putin accused Ukraine of terrorism in relation to two fatal train accidents in Russia over the weekend.

"The blow was deliberately aimed at the civilian population," Putin said during a government session in Moscow, according to the state-run TASS news agency. He accused Ukraine of seeking to block talks on an end to the war.

Last weekend, two trains suffered accidents in the Kursk and Bryansk regions bordering Ukraine after bridges were blown up. Seven people died and dozens were injured as the passenger train derailed near the city of Bryansk.

Moscow: Crimea bridge hit but not damaged in Ukrainian strike

A bridge connecting Russian-occupied Crimea to the mainland was not damaged in a Ukrainian attack Tuesday, Kremlin spokesman Dmitry Peskov said, according to Russian news agencies.

"There was in fact an explosion, but nothing was damaged. The bridge is working," he was cited as saying.

On Tuesday, Ukraine's SBU intelligence service said that the bridge could be in danger of collapsing after it damaged a pillar with an underwater explosion.

The Russian Defence Ministry announced meanwhile on its Telegram channel Wednesday that it had used an Iskander ballistic missile to destroy a German-supplied Iris-T anti-aircraft system in the Dnipropetrovsk region.

Kiev declined to comment in response to a question from dpa.

Germany has delivered six batteries of the sophisticated anti-aircraft system since the Russian invasion of Ukraine in February 2022. They are usually deployed to protect larger cities.