The US-Russia diesel deal can pave the way for further economic cooperation between the two countries, Kremlin envoy Kirill Dmitriev said on Wednesday.

He added that Moscow would overcome any sanctions-related difficulties to ensure the diesel supplies.

The example of diesel cooperation with the US "will open other opportunities as well," he told reporters.

Read more about the US-Russia diesel deal here.

Russian President Vladimir Putin will discuss cybersecurity with top officials on Wednesday, the Kremlin said.

Kremlin spokesman Dmitry Peskov described it as an increasingly pressing issue.

He added that a number of countries were seeking to turn cyber technologies into weapons and Russia needed to be ready to face such challenges.

The United States promised Ukraine extra post-war security guarantees just before Donald Trump agreed to lift sanctions on Russia for diesel exports and upended the negotiations, according to reports.

Volodymyr Zelensky has been emphatic about the need for security assurances in any deal agreed with Vladimir Putin amid concerns that Moscow is already ignoring a supposed energy ceasefire announced by Trump earlier this week.

During six-hour talks in Miami last weekend, special envoys Steve Witkoff and Jared Kushner suggested that the president was willing to strengthen protections for Ukraine as part of a revised peace plan, according to The Telegraph.

However, the discussions were frustrated after Trump agreed to allow Putin to export diesel to the US and globally amid rising fuel costs worldwide.

White House officials have reportedly denied any control over SpaceX amid a growing disagreement over restrictions placed on Starlink and Starshields in Ukraine.

Earlier Elon Musk claimed that Donald Trump controlled Starshields.

Now, Axios correspondent Barak Ravid has said: “White House officials told the Ukrainians they don't have control over SpaceX, the sources said. One of the sources said the Trump administration is going to reach out to SpaceX to figure out what happened.”

Ukraine has launched an attack on Russia's biggest data centre, owned by the country's largest bank and technology company, Sberbank, a senior company executive said on Wednesday.

"We confirm that the data processing centre was attacked. At the same time, all of Sberbank's systems and services are operating normally and without disruption," Sberbank First Deputy CEO Alexander Vedyakhin told reporters.

The strike in the Saratov region on the Volga River followed three attacks in the past week on data centres owned by Russian tech group Yandex. Ukraine says it is responding to Russian attacks on its own data sites.

Along with Yandex, its main domestic rival, Sberbank is Russia's leading developer of artificial intelligence. The domestic market is shared between Sberbank's GigaChat model and YandexGPT.

Ukraine’s president has said it’s impossible to do an election as a point of security with drones swarming the country.

Responding to comments by Donald Trump and Elon Musk that he should step down, Volodymyr Zelensky said: “Each hour we have attacks. This massive attack that we discussed, it was about night. But during the day, the same drones are here; hundreds and thousands each hour attack. So that's why, from a security, you can't do elections.

“Then soldiers are on the front. We can't choose the president without soldiers because they give and gave their lives. They are the first who have to vote, and I think it's fair.”

Volodymyr Zelensky has said people were killed while Starlink has been down because they were unable to intercept drones.

“We use drones with Starlink,” he told Piers Morgan. “So it's not about just just attack, as as I said, we didn't didn't attack their energy. It's not about attack. It's also about defending the lives.”

Elon Musk said on X that Starlink usage was limited to civilian or defensive activities and could not be used for offensive military action.

Mr Zelensky added: “So people were killed because not enough destroying, not enough interceptors, including interceptors with Starlink, which didn't work, of course.”

Volodymyr Zelensky described the energy ceasefire as “the worst version of peace.”

He told Piers Morgan: “They wanted us not to attack diesel. My opinion was it's not fair. Energy ceasefire, it's okay, t's understandable. I mean, it's the worst version of peace. But anyway, it's some steps to the peace.”

He continued: “We support it because we need our people to live to go through this winter and to stop the war. This is what we want.”