cutting off ukraine from the sea. let's pick up there from what frank was saying about odesa — there's fears of an amphibious assault, as he said. but there are also russian troops heading towards troops heading towards the city of kherson, and there's russian troops permanently stationed in transnistria — an unrecognised breakaway area in moldova taken by russian—backed separatists in 1992. so odesa is preparing to be hit from all sides. i'm joined now by sergiy tetyukhin — the deputy mayor of odesa. thank you forjoining us. we are seeing what is happening in mariupol and concerns about a port city being hit and there are also concerns about odesa facing a similar fate. tell us what is happening on the ground.