Russia vowed on Saturday to retaliate after it accused Ukraine of firing US-supplied ATACMS missiles at the border region of Belgorod the previous day.

Outgoing US President Joe Biden authorised Kyiv to use long-range weapons against Russia last year, in a move the Kremlin denounced as a grave escalation of the nearly three-year conflict.

“On January 3, an attempt was made from Ukrainian territory to launch a missile strike against the Belgorod region using US-made ATACMS operational-tactical missiles,” the Russian defence ministry said.

“These actions by the Kyiv regime, which is supported by Western curators, will be met with retaliation,” it added, saying all the missiles were shot down.

The ministry said earlier that air defences downed eight ATACMS missiles in total, without saying when or where.

Russian President Vladimir Putin threatened last year to strike central Kyiv with a hypersonic ballistic missile if Ukraine continued hitting Russian territory with long-range Western weapons.

US President-elect Donald Trump said in an interview last month he was “very vehemently” opposed to Ukraine using the arms, which he said were “escalating” the conflict.

Both Kyiv and Moscow have accused each other of fatal attacks on civilians since the year began.

A Russian strike on a village in Ukraine’s northeast Kharkiv region earlier today killed a 74-year-old man, regional governor Oleg Synegubov said.

Russia’s defence ministry said today it had captured the Ukrainian village of Nadiia, one of the few settlements in the eastern Lugansk region still under Kyiv’s control.

Moscow advanced by almost 4,000 square kilometres in Ukraine in 2024, according to an AFP analysis, as Kyiv’s army struggled with chronic manpower shortages and exhaustion.