It's being claimed at least 13-thousand Ukrainian children have been deported to Russia by Moscow's forces.
The Sunday Times reports that pupils were told they were being taken on school trips, but many never returned.
Ukrainian MP Ivanna Klympush-Tsintsadze says they've been trying for months to raise the alarm about children going missing.
"A lot of them have been taken to so called summer camps or by vacation camps for weeks from their parents and then never returned. And they were even given them for adoption to Russian families."
