Vladimir Putin agrees to halt strikes on Ukraine energy targets for 30 days, after a lengthy phone call with Donald Trump
Volodymyr Zelensky says he supports the energy truce but insists Russia isn't "ready" to end the war, in his first response to the call
The Russian president set out several conditions for a fuller ceasefire during the 90 minute call, including that any settlement should "eliminate the root causes of the crisis", the Kremlin says
Fresh Ukraine peace talks will also begin in the Middle East immediately, the White House says
There's gain and losses for both sides in this, writes our security correspondent Frank Gardner
You can read a recap of the statements from the White House and the Kremlin here
Trump hoped his involvement would bring a swift end to the war, but in practice, the will of a US president alone proves not to be enough, BBC Russia's Liza Fokht writes
The Ukrainian Air Force has said Russia attacked the country overnight with 174 drones, following earlier reports of damage in Kyiv and Nikopol.
It shot down 90 drones and 70 others were successfully diverted, the air force adds.
The strikes hit the Odesa, Kharkiv, Dnipro, Kirovohrad, Sumy, Chernihiv and Kyiv regions, the post on messaging app Telegram says.
Last week in Saudi Arabia, Ukrainian and American delegates met to discuss an end to the war in Ukraine.
After hours locked away in a room, they announced proposals for a 30-day ceasefire.
It was widely welcomed news, as European leaders praised the plan.
Ukraine was "ready to stop shooting and start talking," US Secretary of State Marco Rubio said, and if Russia rejects the offer "then we'll unfortunately know what the impediment is to peace here".
Image source, ReutersUS and Ukrainian representatives held talks in Saudi Arabia last week
Following the announcement, US envoy Steve Witkoff took the ceasefire plan to Russia, where he met with Putin and other officials.
However, Russia is yet to agree, as Putin says there are a lot of details that need to be worked out.
Russia is ready for a halt in fighting, the leader says, but "there are nuances". He says it must lead to "long-term peace and eliminate the root causes of this crisis".
But this is Russia's way of "deliberately setting conditions that only complicate and drag out the process," according to Ukraine's President Volodymyr Zelensky.
Watch: President Trump tells reporters he will speak to Vladimir Putin
On board his presidential plane Air Force One on Sunday evening, US President Donald Trump announced to reporters that he will be speaking to Russian President Vladimir Putin on Tuesday.
He said "a lot of work" has been done over the weekend, and they will see if they have "something to announce" on Tuesday.
It comes one week after US and Ukraine delegates met in Saudi Arabia, where they announced the prospect of a 30-day ceasefire - the first step to ending the war.
However, the US is still trying to convince Russia to agree.
On the talks with Putin, Trump says: "I think we'll be talking about land. It's a lot different than it was before the war, as you know. We'll be talking about power plants, that's a big question.
"But I think we have a lot of it already discussed very much by both sides, Ukraine and Russia. We're already talking about that, dividing up certain assets and they've been working on that."
Quote MessageWe want to see if we can bring that war to an end. Maybe we can, maybe we can't, but I think we have a very good chance."
US President Trump
Russia and Ukraine have launched overnight drone attacks at each other, officials from the respective countries say.
Ukrainian drones targeted energy facilities and other objects in Russia's Astrakhan region, injuring one person and sparking a fire, the regional governor has said on messaging app Telegram. "The situation is under control," Igor Babushkin adds.
Russia's Ministry of Defence says it destroyed 72 Ukrainian drones overnight, including 36 over the Kursk region.
Meanwhile, in Ukraine, air defence units were trying to repel an attack launched by Russia in Kyiv, the capital's Mayor Vitali Klitschko has said in a post on Monday night.
Imogen James
Live reporter
Image source, Getty ImagesThe remains of a residential building destroyed by a Russian attack in Kostiantynivka, Donetsk, this week
Good morning and welcome to our live coverage following the latest on the war in Ukraine.
Last night on Air Force One, US President Donald Trump announced that he plans to speak to his Russian counterpart Vladimir Putin on Tuesday.
"We want to see if we can bring that war to an end," he told reporters.
Trump's administration has been involved in talks with Russia to get them to sign a 30-day ceasefire, which Ukraine has already agreed to.
It's a tricky task - Putin has said while he is in favour of the deal there are a lot of details to be worked out beforehand.
And while diplomatic efforts continue, attacks have been rocking Russia and Ukraine.
On Monday evening, a drone attack hit Ukraine's Nikopol region, damaging homes and leaving widespread power outages, the regional leader says. Russia also launched an attack on the Ukrainian capital Kyiv, according to the mayor.
In Russia, Astrakhan's regional governor says an overnight Ukrainian drone attack targeted energy facilities and other objects in the region, injuring one person and causing a fire.
