Image source, Getty Images

A jet linked to Chelsea football club owner and Russian oligarch Roman Abramovich has landed in Moscow, according to Reuters citing data from a flight tracking service.

The jet took off from Israel and briefly stopped in Turkey on its way to Russia, data from aviation monitoring site FlightRadar24 showed.

Abramovich - who also has Israeli and Portugese citizenship - was seen in Tel Aviv's Ben Gurion airport on Monday, says Reuters.

He was sanctioned by the UK last week for his ties to Russian President Vladimir Putin. The EU has followed suit.

Abramovich has denied having close ties to Putin.

A Ukrainian government advisor said he expects the war to be over by early May at the latest, when Russia runs out of resources to attack its neighbour.

"I think that no later than in May, early May, we should have a peace agreement," said Oleksiy Arestovich, an advisor to the Ukrainian president's chief of staff, late on Monday.

He outlined two possible outcomes in the months ahead.

"There will either be a peace deal struck very quickly, within a week or two, with troop withdrawal and everything, or there will be an attempt to scrape together some, say, Syrians for a round two and, when we grind them too, an agreement by mid-April or late April," he said.

The Pentagon had earlier claimed that Russia is trying to recruit Syrians to fight in Ukraine - though this has not been verified.

Arestovich is not personally involved in the talks between Ukraine and Russia.

China's top diplomat has (again) called for both sides to exercise restraint, in a high-profile meeting with US officials yesterday.

"All parties should exercise maximum restraint, protect civilians and prevent a large-scale humanitarian crisis," Yang Jiechi said, in a read-out summary of the meeting published by Beijing this morning.

Yang said that China was committed to promoting peace talks, and "the international community should... push the situation to cool down as soon as possible."

But he added that the "legitimate concerns of all parties" would need to be addressed.

His comments were made at a seven-hour meeting in Rome with US national security adviser Jake Sullivan which was closely watched - because hours before it took place, US security officals accused China of signalling its willingness to supply Russia with weapons.

Beijing fiercely dismissed the reports as disinformation.

China has so far refrained from condemning Moscow, and said its "security concerns" should be taken seriously.

But Beijing at the same time has expressed "unwavering support" for Ukraine's sovereignty.

Read more here: US warns China against helping Russia

Image source, CHINESE FOREIGN MINISTRY

A residential building is reportedly on fire in Kyiv after explosions were earlier heard in the capital, according to a report by the Ukrainian National News Agency, Ukrinform.

There have been no further details so far, and it is not known how many people - if any - are injured.

Not long ago, two explosions hit the western outskirts of the city, according to local channel Ukraine 24.

Alice Evans and Poonam Taneja
BBC News

Smiling down the camera from his parents' home in southern India, with his dog Leo on his lap, it's hard to believe that only a few days have passed since Vishnu thought he was going to die as he sheltered from Russian shelling in the Ukrainian city of Vinnytsia.

Even though Vinnytsia is in western Ukraine, a long way from the Russian border, it has still faced attacks. Last week nine people died in a missile strike that destroyed the airport on the outskirts of the city, officials say.

Vishnu, 21, is one of the tens of thousands of Indian students in Ukraine to have escaped the country since Russia invaded.

He says the kindness of Ukrainians is the main reason he is still alive.

Read more about Vishnu's journey back home here.

Image source, Polla Vishnu Vardhan Rao

Local channel Ukraine 24 reported two large explosions on the western outskirts of the city - in Kyiv's Borshchagovka district.

According to a report by the channel, the missiles were launched from the Belarusian side. This claim has not been verified by the BBC.

Air raid sirens have gone off in Kyiv, as well as Odesa in the south, Uman in the centre and the Khmelnytsky region in the west.

It's just past 05:30 local time in Kyiv, and journalists on the ground in the capital are again reporting hearing large blasts.

Pre-dawn hits from the Russian side have become a common feature of this war so far.

A court in the Russian Far East region has fined a local resident 80,000 rubles ($666; £512) for using social media to call for an anti-war rally, BBC Russian reports.

The court in Vladivostok charged the man with discrediting the armed forces.

According to a statement from the Ministry of Internal Affairs in Primorye, the man was taken into custody and admitted his guilt.

Russia has toughened its censorship laws since the war in Ukraine began on 24 February.

Despite the new laws, thousands of Russians have reportedly been arrested at anti-war rallies across the country.

If you're just joining us, here's some of the latest developments from Russia's invasion of Ukraine:

• Nearly all of the Russian military offensives remain stalled after making little progress over the weekend, says a senior US defence official
• Negotiations between Russia and Ukraine will continue on Tuesday, according to Ukraine's president
• An anti-war protester has disrupted the evening news on one of Russia's main TV channels. She is reported to have been arrested
• The US warned China there would be consequences if Beijing helped Russia

• The UK is set to announce new sanctions on more than 100 individuals with links to Russian President Vladimir Putin's government on Tuesday