Sheltering Ukrainians painted the word "children" outside a theatre in a desperate but futile attempt to deter a Russian attack.
The large letters spelling out the Russian script warning came before forces went on to drop a powerful bomb on the theatre that was being used as a shelter for families in Mariupol, Ukraine.
The city council said it's "impossible to estimate the scale of this horrific and inhumane act" and that efforts were underway to find the identities of the victims - and just how many innocent Ukrainians were slaughtered.
