Britain allowed Ukrainians to use Storm Shadows a week after President Biden authorized the use of American-made missiles inside Russia, a shift from a more cautious military strategy.

Ukraine has fired UK-supplied Storm Shadow missiles at Russian targets for the first time, the BBC understands. The war-torn country was previously restricted to using the long-range missiles within its own borders.

British-made Storm Shadow missiles have been fired into Russian territory by Ukraine for the first time. Telegraph readers have said the situation is now “spiralling out of control at an alarming rate”. Ukraine’s defence minister avoided confirming that his country used UK-made long-range missiles at a press conference on Wednesday.