Ukraine has fired UK-supplied long-range Storm Shadow missiles at targets within Russia for the first time, the BBC understands.
The UK government is not commenting on the reports but the defence secretary said "Ukraine’s action on the battlefield speaks for itself".
It comes just days after US-supplied longer-range Army Tactical Missile System (Atacms) missiles also struck targets inside Russia.
US President Joe Biden has agreed to give Ukraine anti-personnel landmines, a defence official told the BBC, as the US steps up aid to slow Russian advances.
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