Paris-based watchdog, the International Energy Agency, is closely monitoring Ukraine’s strikes against Russian energy infrastructure, Toril Bosoni, head of its oil industry and markets division, told CNBC’s “Street Signs Europe” on Friday.

When asked about global energy security, Bosoni said, “We are watching, obviously, the Middle East very closely. The continued tanker attacks in the Red Sea is of key concern, but also escalating tensions between Iran and Israel, and then we’re seeing tensions between Russia and Ukraine continue, with attacks on Russian refineries.”

Earlier on Friday, a Russian official said Moscow’s forces had downed Ukrainian drones targeting the town of Novoshakhtinsk, which is home to a refinery that was previously forced to temporarily shut down in the wake of an attack from Kyiv.

Russia is one of the world’s largest producers of hydrocarbons, although Western and Group of Seven nations can no longer access seaborne deliveries of its oil and oil products, following Moscow’s invasion of Ukraine.

— Ruxandra Iordache

Russian air defense forces took down four enemy drones, near Novoshakhtinsk in the Rostov region, regional governor Vasily Golubev said in a Google-translated Telegram post.

CNBC could not independently verify developments on the ground.

The town houses the Novoshakhtinsk refinery, which Russian officials in March said was struck by Ukrainian drones, resulting in a temporary shutdown of operations.

Russian and Ukrainian energy and power infrastructure has been increasingly targeted in recent weeks, adding to global concerns over broader energy flows. Moscow is one of the world’s largest oil and gas producers.

— Ruxandra Iordache

Correction: This post has been updated to reflect the March timing of the attack against the Novoshakhtinsk refinery.

German Chancellor Olaf Scholz will raise concerns about Beijing’s assistance to Russia during his April 15-16 trip to China, Reuters reported, citing German officials.

A critical trade partner of Moscow, China has been facing international pressure not to assist the Russian war effort in Ukraine. Beijing claims it is not involved in such a capacity.

The U.S. has increasingly signaled its readiness to introduce sanctions against Chinese institutions that are found to be aiding Russia’s invasion of Ukraine.

— Ruxandra Iordache

Water levels of the Ural river reached 11 meters and 29 centimeters on Friday in Russia’s Orenburg, Denis Pasler, the regional governor, said on Telegram.

In the two hours to 8:00 local time alone, water levels had increased by 6 centimeters, Pasler said, calling the situation “difficult,” according to a Google translation of his statement.

The Russian Ministry of Emergency Situations said work to limit the impact of the flood and reduce water levels in towns — including Orsk, which was one of the first places to be flooded as the Ural’s water levels began rising last week — was ongoing. Overnight, water levels in Orsk fell by 30 cm, the ministry said on Telegram.

Meanwhile, state media reported that people in the southwestern Kurgan region were evacuated early on Friday as water levels there rose by 1.4 meters overnight.

The Ural is Europe’s third-longest river and flows through Russia and Kazakhstan. Snow melt last week caused water levels to rise quickly, and the river has since burst through dams and its banks, flooding cities alongside it.

— Sophie Kiderlin

Overnight attacks from Russia damaged infrastructure facilities and private houses across Ukraine, officials said Friday.

The Ukrainian army said on Telegram that it had shot down 16 of the 17 drones Russia used in strikes overnight. Russia also deployed a Kh-59 guided air missile, the Ukrainian army said.

Serhiy Lysak, governor of the Dnipropetrovsk region in the east of Ukraine, said on Telegram that debris from a drone fell onto a “critical” infrastructure facility, starting a fire. Reuters reported that this was an energy facility. Several private houses were also damaged in the region, Lysak said.

Elsewhere, Kherson Governor Oleksandr Prokudin said on Telegram that fresh strikes on infrastructure and homes were recorded in the southern Ukrainian region.

CNBC could not independently verify the information.

— Sophie Kiderlin

Japan wants any handling of frozen Russian assets to abide by international law, its finance minister said on Friday, adding that the topic will likely be discussed at next week’s meeting of his counterparts from G7 advanced economies.

“I don’t think there is consensus yet among the countries on what to do with the frozen Russian assets,” Japanese Finance Minister Shunichi Suzuki told a press conference.

“Japan’s stance is that it must be handled in a way that does not violate international law,” he said, suggesting Tokyo is cautious over the idea, floated by Washington, of confiscating frozen Russian assets outright — a move some experts warn could lead to legal disputes.

Suzuki is expected to travel to Washington D.C. next week to attend the G7 and Group of 20 finance leaders’ gatherings, to be held on the sidelines of the International Monetary Fund spring meeting.

— Reuters

Ukraine’s parliament on Thursday passed a controversial new law that will give the government more power to mobilize society for war as the country continues to battle Russia’s onslaught.

The vote in favor of the legislation follows months of delays and must now be signed by Ukrainian President Volodymyr Zelenskyy to take effect.

Russia and the U.S. are discussing non-deployment of nuclear weapons in space, Russian deputy foreign minister Sergei Ryabkov said Thursday, according to Russian state media agency Tass.

“Our delegations at the relevant international platforms, and above all in New York, where Washington – the US Administration – is promoting the topic of accusations against Russia, are indeed in contact and discussing this issue,” Ryabkov said in Google-translated comments.

Ryabkov said space could be used for military purposes but there should not be strikes there and Russia would work to keep space peaceful.

“We will work with the world majority in the interests of guaranteeing that space will remain peaceful, to achieve a situation where there will be no threat to anyone from there,” he said.

Earlier this year, tensions flared between Washington and Moscow over the risk of potential nuclear attacks in space. Russia at the time denied claims from the U.S. that it was developing nuclear weapons that would target satellites in space.

— Sophie Kiderlin

Russia said it had carried out a “massive” drone and missile attack on Ukraine’s energy infrastructure in response to Ukrainian attacks on its oil and gas industry.

“In response to attempts by the Kiev regime to inflict damage on the oil and gas industry and energy facilities of Russia, Armed Forces of the Russian Federation launched a massive overnight strike with high-precision long-range air and sea-based weapons, as well as unmanned aerial vehicles, against facilities of the fuel and energy complex of Ukraine,” Russia’s Ministry of Defense said Thursday, according to a Google translation.

“The goals of the strike were fulfilled. All targets were hit,” the ministry added.

Early-morning Russian missile and drone attacks on several regions across Ukraine left thousands of civilians without power and damaged energy infrastructure, officials said Thursday.

Russia’s defense ministry said that, as a result of the attacks, the “operation of Ukrainian military industry enterprises was disrupted, the transfer of reserves to combat areas was disrupted, and the supply of fuel to military units of the Armed Forces of Ukraine was hampered.”

CNBC could not confirm developments on the ground.

— Holly Ellyatt