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Ukrainian drones hit St Petersburg oil terminal; efforts under way to reopen international airport serving Kyiv

Foreign secretary says there are legal, moral and political justifications for using assets of $350bn

Trial of local activist provokes one of largest reported demonstrations in country since Ukraine invasion

Military activity on frontlines, which until recently had been covered in mud, continues under snowy sub-zero conditions

Russian missiles hit civilian buidlings in Kharkiv; France to deliver missiles, bombs and security pact to Ukraine; TotalEnergies abandons Russian contract

Decision by University of Tartu to cut ties with Viacheslav Morozov questioned by some who worked alongside him

Russia has fought a long war against Ukraine’s composers. Now Kyiv-born conductor Dalia Stasevska and US violinist Joshua Bell are resurrecting a war-scarred concerto – with an orchestra whose horn-player is missing in action

Ukraine shoots down spy and command planes in major losses for Russia; Zelenskiy pushing peace formula at Davos

Volodymyr Zelenskiy heads to Davos amid multinational push to find a formula for peace; Ukrainians urged to build DIY drones for the military

The country has been fighting since 2014 when Russia annexed Crimea and many people are battling mental health issues

Church court says Aleksiy Uminsky broke his oath by refusing to recite ‘Prayer for Holy Rus’, which church has made compulsory at services

French foreign minister vows continuing support during Kyiv visit; Russian priest faces expulsion over refusal to recite victory prayer

Head of foreign intelligence service says US may mobilise ‘fifth column’ of exchange programme graduates

Injuries as Russian missiles hit Kharkiv hotel; Russia ‘testing nuclear-capable missiles for North Korea in Ukraine’; Zelenskiy visits Baltic allies

Even sham elections need to be conducted effectively – get them wrong and they can jeopardise a whole regime, says Olga Chyzh of the University of Toronto

Ukrainian embassy says conferences with speakers including Putin ally Alexander Dugin are a ‘provocation’

The odyssey of Oleksandr Ivantsov who fought with the Azov brigade

After the EU and US failed to agree aid packages, we must send a clear message to regimes waging wars

Conscription will not cover women, says Ukrainian MP; Russian warplane ‘accidentally’ drops bomb; Black Sea corridor moves 15m tonnes of cargo

Exclusive: Sergey Kolesnikov has supplied building materials to Russian military and for use in occupied Ukraine

Missile attack on Kharkiv; Japan’s foreign minister vows $37m in support for Ukraine via Nato; Russia can be reined in under international law – Zelenskiy

Poet and photojournalist Anastasia Taylor-Lind was in Ukrainian restaurant when 13 people were killed and 60 wounded

Russian military on course to lose 500,000 personnel within the next year, say UK officials; Russian missile strike kills 11 in Donetsk

Assassinations, atrocities and invasions, along with uncertain US leadership, presage a year of rising violence

Kyiv says Russia has hit Ukraine with North Korean-supplied missiles for the first time; US official warns of diminishing time to resupply aid to Ukraine