The Kremlin said Moscow will "think through" the proposal, but stressed "there are lots of questions" and that Russia is "resistant to any kind of pressure...

The Kremlin jumped on the comments, accusing Kyiv of making a "direct threat" to its May 9 commemoration in Moscow.

Dozens of volunteers, doctors and rescue workers were digging through the debris of Okhmatdyt children's hospital in a desperate search for survivors.