British Storm Shadow cruise missiles penetrated Russian air defences in a "massive" strike by Ukraine against a chemical plant inside Russia that makes gunpowder and explosives, the Ukrainian military has revealed.

The use of the British-supplied weapons will likely trigger new threats and condemnation from the Kremlin.

The UK gave Ukraine permission to use its Storm Shadow missiles inside Russia last year, with the first known strikes happening in November.

John Healey, the British defence secretary, on Monday said Vladimir Putin regards the UK as his "number one enemy" because of its support for Ukraine.

The Ukrainian attack on Tuesday also comes as US President Donald Trump appeared to shelve a plan to meet his Russian counterpart to discuss a peace deal on Ukraine within the ne

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