Russian President Vladimir Putin warned that allowing Kyiv to use long-range weapons to strike Russian targets would mean NATO is 'at war' with Russia.

These comments came as the US and UK discussed easing rules on firing Western weapons into Russia, a request Kyiv has been pushing for.

Putin emphasized that such a move would significantly change the conflict's nature, prompting Russia to respond based on new threats.

The warning follows Ukraine's urgent appeals for more powerful weapons with fewer restrictions as Russia continues its advance in eastern Ukraine.