Russian Foreign Minister Sergey Lavrov said that Russia possesses weapons "that will have serious implications for the handlers of the Ukrainian regime."

Next week, an already very public debate over whether Ukraine should be allowed to use long-range Western-supplied missiles on Russian soil will come under an even brighter international spotlight.

Amid continuing prohibited weapons transfers to Ukraine and Russia during the ongoing war, top disarmament and legal officials issued calls on Friday for parties to the conflict to abide by international law and protect civilians.