Kyiv has called on Moscow to respond to the proposed ceasefire - the Kremlin says it is waiting to be briefed by the US.

Russia said on Thursday there was no doubt that its troops would soon complete the task of clearing out Ukrainian forces from Russia's Kursk region where they have held a pocket of territory for more than seven months.

Russia says it will discuss the U.S. ceasefire proposal, but Vladimir Putin has signaled he seeks to expel the remnants of Ukrainian forces from Kursk.

Russia claimed to retake a key town in the area from Ukrainian forces. Ukraine’s top military commander has said that its forces would continue to “hold the line.”