A Kremlin adviser has raised the possibility that drone factories in the United Kingdom could be attacked by what the adviser called “unknown sources”, in comments broadcast by BBC Newsnight.

The remarks came after the British government announced that it had agreed to hand over blueprints for British-made missile components to Ukraine. The supplied evidence establishes this sequence of events, but it does not show that the UK decision directly caused the adviser’s comments or that the two developments are formally linked.

No factory was identified in the available report, and no location, date or possible method of attack was provided. It is also not yet known what the adviser meant by “unknown sources”, whether the phrase referred to state or non-state actors, or whether the comments were based on information about a specific plan.

The evidence does not indicate that an attack is imminent or that any organisation has claimed it intends to target British drone production. It also provides no details about the missile components covered by the blueprints, the planned timing of their transfer or how Ukraine would use the designs.

The comments nevertheless place attention on possible risks to British defence-related manufacturing as the UK expands practical support for Ukraine. Further information would be needed to assess whether the statement represented a warning, a prediction or a broader political message.