Russian army launches massive drone attack on Odesa

Odesa Russian drone attack strike destruction damage residential building civilian casualties infrastructure Kyivskyi district Prymorskyi district war Russian-Ukrainian war Russian aggression rescuer SES emergency response rescue operations emergency response multi-storey building Russian drone strike Odesa Ukraine April 6 2026 Russian army overnight strike casualties fatalities injuries residential damage infrastructure facilities administrative sites Kyivskyi district Prymorskyi district damage assessment drone attack civilian impact child victim rescue efforts humanitarian crisis conflict zone military aggression urban warfare international response disaster response civilian casualties emergency services crisis management building collapse security threat.