Russia says the UK is “adding fuel to the fire” after it provides Ukraine with declassified weapon component information, warning that the move will increase tensions between Moscow and London. The claims are made as Andy Burnham, described by outlets as the UK prime minister, travels to Kyiv to hand over newly released technical details.

According to reporting, Burnham’s visit involves sharing previously classified British information about components used in long-range cruise missile systems, including details said to relate to missile production. Russia frames the step as UK participation in the Ukraine conflict and an escalation of its involvement.

Other coverage characterizes the programme as a declassified release intended to help Ukraine improve production capabilities for long-range missiles. The sources also link the disagreement to diplomatic and military tensions already present between the two countries, with Russia’s statements centring on the risk of further escalation following the UK’s disclosure.