About 200 people laid roses and wreaths in a central square in the city of Samara, where some vowed to ‘avenge’ the victims

• Russia-Ukraine war: full coverage

Mourners have voiced grief and anger at a rare public commemoration in Russia for the scores of soldiers killed on New Year’s Eve.

Admitting its worst military losses from a single Ukrainian attack, Russia on Tuesday said 89 servicemen were killed when a temporary deployment point was struck in Makiivka, a town in the eastern region of Donetsk partially held by separatists since 2014.

Protracted campaign of Iranian drones to ‘exhaust’ Ukraine, says president. This live blog is now closed

• At a glance: what we know on day 314 of the invasion

Nato countries will discuss their defence spending targets in the coming months as some of them call for turning a 2% target into a minimum figure, Nato secretary general Jens Stoltenberg told the German news agency DPA, according to a Reuters report.

Some allies are strongly in favour of turning the current 2% target into a minimum,” DPA quoted Stoltenberg as saying in an interview published on Tuesday.

We will meet, we will have ministerial meetings, we will have talks in capitals,” he said.

The parties discussed expected results of the next Ukraine-EU summit to be held on 3 February in Kyiv and agreed to intensify preparatory work,” the statement read.

Recently mobilised Russian troops said to have been killed; Ukraine reports 20 ‘aerial targets’ shot down above Kyiv

• At a glance: what we know on day 313 of the invasion

A New Year’s Day attack on a complex in the Russian-controlled city of Makiivka killed scores of recently mobilised troops sent by Moscow, according to reports on both sides, in what could be one of the deadliest known incidents involving Russian conscripts so far.

Without claiming the strike, Ukraine’s military command said up to 400 Russian soldiers were killed in the incident in Makiivka, a city in the Moscow-controlled parts of the Donetsk region.

There has been little movement in the frontlines for weeks, and there are signs Russia lacks offensive combat power

Russia’s war on Ukraine enters its second calendar year at a delicate point. It is six weeks after the liberation of Kherson and there has been little movement in the frontlines either way since. There is not yet any sign of a full, renewed counteroffensive by the Ukrainians, not helped by the weather which has been above freezing, leaving muddy ground not conducive to military manoeuvre.

“The situation is just stuck,” Ukraine’s head of military intelligence, Kyrylo Budanov, told the BBC last week, which, if an accurate assessment, is not helpful to Kyiv, badly needing to retain momentum in the run-up to spring. But the political leadership of both countries clearly signalled a desire to try to break the deadlock with new goals for the new year.