attack. russia accusing ukraine of destroying a field depot in the city a few weeks ago. at the time, the ukrainian officials refused to confirm or deny. one theory at the time for ukraine s reluctance to discuss the details of that alleged attack was the possibility that it could trigger an escalation. that russia could strike back. now, the russian military is saying very publicly, very explicitly that that is exactly what it will do if ukraine continues to even think about launching strikes like that on the territory of the russian federation. all right. phil black reporting live from kyiv. thank you. the mayor of mariupol says 180,000 people are waiting to be evacuated from that besieged city. we should note, no humanitarian corridors were open today because russian forces were brocking the evacuation buses. the riesistance is putting all