The Kremlin has accused U.S. President Joe Biden of adding fuel to the fire and seeking to escalate the conflict in Ukraine by lifting restrictions on long-range weapons.

Kremlin spokesman Dmitry Peskov’s comments on November 18 come after reports that Biden has granted Ukraine permission to use U.S. weapons to strike deeper into Russia.

The development comes after months of lobbying by Ukrainian officials, including President Volodymyr Zelenskiy, for Western states to give Kyiv the green light to use donated weapons to their full potential to hit targets currently out of range.