Finnish President Alexander Stubb, who also took part in the talks, said "genuine progress" was made on proposals to achieve peace but gave no details and warned that patience would be needed. Witkoff was not present at the joint press conference after Tuesday's talks in the Norwegian capital.

Trump's son-in-law Jared Kushner, another key envoy, took part in the meeting via video link. The official confirmed that Witkoff is due to meet President Vladimir Putin in Russia tomorrow to discuss the proposals and that Kushner will again participate virtually.

Ahead of next month's US midterm elections, Trump has also sought to blame Ukraine's attacks on Russian oil refineries for fuel prices which have been rising since the start of the US-led war on Iran. Speaking after Zelensky's news conference in Oslo, Trump again told reporters at the White House he wanted Kyiv to "make a deal".

Putin launched a full-scale invasion of Ukraine in 2022, and Moscow currently controls about 20% of Ukrainian territory. Russian drone attacks have continued this week.

Ukrainian officials said at least 10 people were killed on Tuesday - four in Kyiv and the capital region, another four in the eastern Donetsk region, and two in the central city of Dnipro. Another attack overnight on Wednesday killed two more people near Kharkiv, the country's second-largest city.

Addressing the issue of US intelligence sharing after Tuesday's talks, Zelensky said he was "thankful that intelligence works now"." Speaking about early warning, which is very important for our people, our children, adults, civilians because we can hear when ballistic[s] is coming - so we are thankful to American side, now it works, it's great," the Ukrainian president said.

He said he also hoped for a good result on SpaceX's Starlink satellite access as well, after Ukraine's military had reported in recent days speed restrictions on the US platform used by Kyiv to carry out drone strikes against Russia. Before the Oslo talks, Zelensky said he had had a "constructive discussion" with Rubio about the need for US early warnings, missile interceptors and Starlink.

Last week, a bipartisan group of US senators called for an urgent investigation into speed restrictions to the Starlink network in Ukraine. And Zelensky also restated that Ukraine was "ready for negotiations" to end the war.

" Of course, we are not losing this war, but we are losing people because Russia attacks," he said. The Ukrainian leader added that "strong" security guarantees for Ukraine were also discussed in Oslo, as well as energy ceasefire proposals.