Zelenskyy was in London for talks with two dozen European leaders who have pledged military support to shield his country from future Russian aggression.
Ukraine's President Volodymyr Zelenskyy urged the United States to expand sanctions on Russian oil from two companies to the whole sector on Friday, and appealed for long-range missiles to hit back at Russia.
Zelenskyy was in London for talks with two dozen European leaders who have pledged military support to shield his country from future Russian aggression if a ceasefire stops the more than three-year war.
The meeting, hosted by British Prime Minister Keir Starmer, aimed to step up pressure on Russian President Vladimir Putin, adding momentum to recent measures that have included a new round of sanctions from the European Union and United States on Russia’s vital oil and gas export earnings.
The talks also addressed ways of helping protect Ukraine's power grid from Russia’s almost daily drone and missile attacks as winter approaches, enhancing Ukrainian air defences and supplying Kyiv with longer-range missiles that can strike deep inside Russia.
Zelenskyy has urged the US to send Tomahawk missiles, an idea US President Donald Trump has flirted with but so far refused to do.
The Ukrainian leader said Trump's decision this week to impose oil sanctions was "a big step," and said "we have to apply pressure not only to Rosneft and Lukoil, but to all Russian oil companies."
"Besides, we are carrying out our own campaign of pressure with drones and missiles specifically targeting the Russian oil sector," he said at a news conference at the Foreign Office in London.
Putin has so far resisted efforts to push him into negotiating a peace settlement with Zelenskyy and has argued that the motives for Russia’s all-out invasion of its smaller neighbour are legitimate.
Russia has also been adept at finding loopholes to circumvent the effects of Western sanctions.
And the Russian leader's refusal to enter into meaningful peace talks with Kyiv has exasperated Western leaders.
"He's rejected the opportunity for talks once again, instead making ludicrous demands for Ukrainian land, which he could not and has not taken by force," Starmer said at a news conference alongside Zelenskyy and several other European leaders.
"Of course, that is a complete non-starter."
NATO Secretary-General Mark Rutte said Putin's goals remain unchanged but he "is running out of money, troops and ideas."
Danish Prime Minister Mette Frederiksen and Dutch Prime Minister Dick Schoof also attended Friday's meeting of the "Coalition of the Willing" in person. About 20 other leaders joined by video link.
Building a 'reassurance force'
Ukraine's Western allies need to resolve some big questions about the future part they will play as Europe’s biggest conflict since World War II heads toward its fourth anniversary.
The uncertainties include how they can help fund war-ravaged Ukraine, what postwar security guarantees they might be able to provide and what Washington’s commitments to future security arrangements might look like.
Details of the potential future "reassurance force" are scant and the London meeting aimed to further develop the idea, even though any peace agreement appears at the moment to be only a distant possibility.
The force is likely to consist of air and naval support rather than Western troops deployed in Ukraine, according to officials.
UK Defence Secretary John Healey says it would be "a force to help secure the skies, secure the seas, a force to help train Ukrainian forces to defend their nation."
The war has shown no sign of subsiding, as a front-line war of attrition kills thousands of soldiers on both sides while drone and missile barrages cause damage in rear areas.
Russia says it has captured Ukrainian villages
Meanwhile, the Russian Defence Ministry claimed on Friday that over the past week its forces have captured 10 Ukrainian villages.
The small conquests are part of Russia's slow but steady slog to envelop the remaining Ukrainian strongholds in the Donetsk region from both the north and the south and create footholds for pressing further west into the Dnipropetrovsk region.
The Defence Ministry also said its forces downed 111 Ukrainian drones over several regions overnight, with debris causing damage to homes and infrastructure.
One drone hit an apartment building in Krasnogorsk on Moscow's northwestern edge, injuring five people, including a child, according to Andrei Vorobyov, the governor of the Moscow region.
Moscow Mayor Sergei Sobyanin reported that air defences downed three drones heading to the city, which forced flights to be suspended at two Moscow airports.
Meanwhile, Ukrainian authorities said Russian artillery struck a residential block in the southeastern city of Kherson on Friday, killing two people and injuring 22 others, including a 16-year-old.
Russian planes also dropped at least five powerful glide bombs on the northeastern city of Kharkiv, injuring six people and damaging homes, according to Kharkiv Mayor Ihor Terekhov.
And for the first time, Russia fired glide bombs on Ukraine’s southern Odesa region Friday, according to Oleh Kiper, head of the Odesa Regional Military Administration, calling it "a new, serious threat" in the area.
Glide bombs are significantly cheaper than missiles and carry a heavier payload.
Ukraine’s rail company, Ukrzaliznytsia, announced train delays and route changes in three regions caused by "massive shelling" that damaged infrastructure, which Russian forces have targeted in recent months.