Russian President Vladimir Putin has cited positive developments in negotiations between Russia and Ukraine. The leader did not offer specifics, but the comment temporarily caused the stock market to go significantly higher. Meanwhile, Moscow requested a meeting with the UN Security Council. It is accusing the US of engaging in "military biological activities" in Ukraine. The US' UN Mission dismissed the claim. Associated Press International Affiliate Reporter, Philip Crowther, joins to share what the situation is like in Mariupol, following the bombing of a maternity and children's hospital there. Crowther tells us whether the humanitarian corridors are operating now. He fills us in on where the latest attacks by Russia are taking place and whether Russia has changed its military strategy in any way. Apart from Russia accusing the US of military biological activities in Ukraine, the World Health Organization has urged Ukraine to destroy high level pathogens that it may have at its Public Health Laboratories. This is in order to avoid any potential spills if those facilities are bombed. Crowther explains what more is known about that and how big of a concern that is. Don't miss out on the latest news and analysis from a Catholic perspective. Get EWTN News Nightly delivered to your email: https://ewtn.com/enn