US President Donald Trump said his administration "might" impose more sanctions on Russia.
"I might," Mr Trump said, when asked by a reporter at the White House if he was planning more sanctions on Russia. Mr Trump was speaking alongside Finnish President Alexander Stubb.
He said the United States and NATO allies were "stepping up the pressure" to end the war in Ukraine, after his outreach to Russia's Vladimir Putin failed to materialise any ceasefire.
"Yeah, we are stepping up the pressure... We're stepping it up together. We're all stepping it up. NATO has been great," he added.
Mr Trump also said the United States was not planning to withdraw US forces from Europe.
"We have a lot of troops in Europe, as you know, a lot, and we can move them around a little bit, but no, basically we'll be, we'll be pretty much set," the US president said.
Zelensky accuses Russia of sowing chaos in Ukraine
It comes as Ukrainian President Volodymyr Zelensky accused Russia of wanting to sow "chaos" in Ukraine by launching strikes on his country's energy grid and railway infrastructure.
Moscow, whose forces invaded Ukraine in 2022, have in recent weeks escalated aerial attacks on Ukrainian energy facilities and rail systems.
"Russia's task is to create chaos and apply psychological pressure on the population through strikes on energy facilities and railways," Mr Zelensky told journalists in embargoed comments made in Kyiv yesterday.
The recent attacks mirror similar Russian bombing campaigns in the winters of 2022, 2023 and 2024 when attacks left millions of Ukrainians without energy or heating for long periods.
Mr Zelensky said that Russian attacks this year had already put Ukrainian gas infrastructure under "heavy pressure" and that more strikes on gas infrastructure could force his country to ramp up imports.
Ukraine has also recently stepped up its own drone and missile strikes on Russian territory in a campaign that Mr Zelensky said was showing "results" and that have also increased fuel prices in Russia.
"We believe that they've lost up to 20% of their gasoline supply - directly as a result of our strikes," Mr Zelensky said, adding there was evidence Russia had stepped up imports from China and Belarus.
Russia accuses Ukraine of rupturing pipeline
While Russia accused Ukraine of rupturing a now defunct pipeline used to transport Russian ammonia into Ukraine for export, releasing toxic gas into the air.
The incident took place near the frontline village of Rusin Yar in Ukraine's eastern Donetsk region, Russia said.
"During Ukraine's retreat from the area at around 1.05 pm (10.05 GMT) on 9 October, the pipeline was blown up, resulting in the release of ammonia residues through the damaged section," the Russian defence ministry said, accusing Kyiv of trying to slow its advances.
It posted a video showing what appeared to be clouds of a chemical compound spewing out from a source in the ground.
The military administration in Ukraine's Donetsk region confirmed on Telegram that the pipeline had been "damaged" without indicating the reason.
The authorities said the incident did not present a "menace to the lives of people" living nearby.
Ammonia is used to make fertiliser.
Before the war, the Tolyatti-Odesa pipeline transported millions of tonnes of the chemical compound from the Russian city of Tolyatti to Black Sea ports in Ukraine.
It ceased operations shortly after Moscow launched its 2022 offensive.
Both Russia and Ukraine had accused each other of rupturing the pipeline before, in 2023.
Ukraine says Russian strikes kill three
Meanwhile, Russian strikes killed three people and wounded two in Ukraine's northeastern Sumy region, its military administration said.
The attacks came after Russia said yesterday that momentum towards reaching a peace deal in Ukraine had largely vanished, following Vladimir Putin and Donald Trump's presidential summit in Alaska, dimming hopes for a quick end to the three-and-a-half year war.
"Russia is attacking the communities of the region with dozens of strike UAVs and guided aerial bombs," Oleg Grygorov, the head of Sumy's regional military administration, said on Telegram yesterday.
He confirmed three men were killed in the attacks and two people were wounded.
An attack by Ukrainian drones on Russia's Volgograd region caused fires at "fuel and energy facilities", Governor Andrey Bocharov said today.
The Ukrainian military said it had struck the Korobkovsky gas processing plant and oil transport infrastructure in the region.
Ukraine's general staff recorded explosions and a fire at the gas processing plant and "Yefimovka" station, according to a statement on Telegram.
Mr Putin and Mr Trump met at an air base in the Alaskan city of Anchorage in August, but failed to reach any kind of peace agreement to end the fighting.
Russia launched its full-scale offensive on Ukraine in February 2022, describing it as a "special military operation" to demilitarise the country and prevent the expansion of NATO.
Kyiv and its European allies have cast the war as an illegal land grab that has resulted in tens of thousands of civilian and military casualties and widespread destruction.
Millions of Ukrainians have been forced to leave their homes since 2022, while Russia now occupies around a fifth of Ukrainian territory - much of it ravaged by fighting.
