Trump wrote on social media that “great progress was made” in the Wednesday (Thursday AEST) meeting, adding that he has already updated some of America’s European allies.

Trump told European leaders in a phone call that he intended to meet Putin soon – potentially as early as next week – followed by a trilateral meeting with Ukraine’s President Volodymyr Zelensky, according to two sources familiar with the call.

A European government source also confirmed the contents of the call.

One White House official noted that while Trump said he intended to meet Putin as early as next week, it would likely be difficult to execute a meeting on that timeline given the negotiating that would have to be done, as well as the logistical hurdles.

“The Russians expressed their desire to meet with President Trump, and the president is open to meeting with both President Putin and President Zelensky. President Trump wants this brutal war to end,” White House press secretary Karoline Leavitt said in a statement.

A White House official earlier said “the secondary sanctions are still expected to be implemented on Friday.”

The Putin-Witkoff meeting, which Russian state media said lasted about three hours, took place after a frustrated Trump imposed a deadline on Moscow to agree to a ceasefire or face tough secondary sanctions, hitting countries that buy Russian oil with a 100 per cent tariff.

Oil and gas revenues are a key source of cash for the Kremlin, making up roughly a quarter of Russia’s government budget, so losing customers would be painful – and could hurt Moscow’s ability to finance the its war on Ukraine.

The Kremlin had earlier described the meeting between Witkoff and Putin as “constructive and useful,” according to Russian state media TASS.

“Putin conveyed some signals to the United States on the Ukrainian issue. Corresponding signals were also received from President Trump,” state media outlet RIA Novosti reported, citing the Kremlin.

The Kremlin said it would release more information on what was discussed after Witkoff reports back to Trump, RIA said in a post on social media.

Zelensky, who spoke to Trump following the Witkoff-Putin meeting, said “it seems that Russia is now more inclined toward (a) ceasefire).”

“The pressure on Russia is working. But the main thing is that they do not deceive us in the details. Neither us, nor the United States,” the Ukrainian leader said during his nightly video address to the nation.

Trump also spoke to Zelensky on Tuesday (Wednesday AEST), ahead of Witkoff’s trip, to discuss potential US sanctions against Russia.

Trump growing impatient with Putin

Earlier in the day, the US envoy was greeted at the airport in Moscow by Russia’s investment envoy Kirill Dmitriev. Video later posted by the Kremlin showed Witkoff shaking hands with Putin ahead of their meeting.

Trump has grown increasingly impatient with Russia’s resistance to his peace efforts. Since the last meeting between Witkoff and Putin in April, Russia has ramped up its assault on Ukraine, attacking cities with an onslaught of missiles and drones.

Trump has called Russia’s attacks “disgusting” and has accused Putin of peddling “bull—t” in their tense phone conversations.

Before the latest meeting, Trump said he would wait for the outcome of the talks to decide whether or not to impose new sanctions on Russia.

“We’re going to see what happens,” the president said at the White House. “We’ll make that determination at that time.”

Hours after the meeting in Moscow, Trump imposed an additional 25 per cent tariff on India as punishment for its imports of Russian oil, according to a document posted on the White House website.

Trump earlier this week threatened India with the new tariffs, saying they were helping Russia wage war in Ukraine.

“India is not only buying massive amounts of Russian oil, they are then, for much of the oil purchased, selling it on the open market for big profits. They don’t care how many people in Ukraine are being killed by the Russian War Machine,” he wrote on social media.

‘Cruelty aimed at instilling fear’

As diplomacy was underway in the Kremlin, Ukraine was once again left reeling following a spate of Russian attacks across the country overnight.

At least six people were killed in strikes carried out by Moscow in the 24 hours before Wednesday morning, including the deadly bombing of a recreation centre in the south-eastern city of Zaporizhzhia.

Zelensky condemned the attack on the centre, where two people died and four children were among the 12 wounded, as having “zero military sense,” calling it “just cruelty aimed at instilling fear”.

A gas compressor station that helps Ukraine receive US and Azerbaijani energy imports was also attacked overnight, according to the country’s energy ministry.

The gas transmission facility in the town of Novosilske, which is close to the border with Romania in Ukraine’s southern Odesa region, was targeted by dozens of strike drones, the ministry said.

“Hundreds of families were left without gas,” Zelensky said in a statement. “This was a deliberate blow to our preparations for the heating season – absolutely cynical, like every Russian strike on our energy infrastructure.”

Meanwhile, Ukraine also said the US State Department had signed off on a $US200 million ($307 million) deal which will allow its partners to purchase military supplies on its behalf, including technical support for heavy artillery. The US has not yet commented.

Zelensky also welcomed pledges from NATO members worth more than $US1 billion, through an initiative in which four of Ukraine’s European allies – the Netherlands, Denmark, Norway and Sweden – will purchase US-made weapons for Kyiv.