The Kremlin said on Tuesday that Ukraine had not responded to many offers by Russia President Vladimir Putin to start direct peace negotiations, and that it was unclear whether it would join a three-day ceasefire he has announced for next month.

The ceasefire would begin May 8 and end on May 10, and the Kremlin said it expects Ukraine to adhere to it as well. Ukraine has been pushing for a full truce.

Russian media shared video footage from the country's defense ministry that showed North Korean troops in action, following the first official confirmation from Pyongyang and Moscow of their involvement in the Ukraine war.

After Russia claimed to have retaken the Kursk region from Ukraine, North Korea acknowledged for the first time that it had sent soldiers to fight in Moscow’s war.

North Korea acknowledged for the first time that it deployed troops to support Russia’s war on Ukraine, claiming the country’s military had helped Moscow retake control of the border region of Kursk.