country at war and meeting between russia and ukraine is due to be held at the border with bella. ruth jenna, how is in levine? with more on those talks, representations from ukraine and russia are due to meet on monday in the town of crypt. yup. that's on the border between ukraine, ukraine and bell, a rooster scenario that was a band and part of a large area that was abandoned close to chernobyl at the time of the nuclear meltdown there in 1986. we don't know very much about the form or substance of these talks. we don't know how long they will last or indeed even what there is exactly to talk about, because there is no sign, no indication of russia backing off in any way from it. so the key demands, thousands of ukrainian residents have arrived a neighboring poland in slovakia as the russian attack intensifies. they were met by volunteers who distributed food and close to you in refugee agency says more than 400000 people have left ukraine since the invasion. again, meanwhile, the russian president has put his nuclear forces on high alert. he says it's in response to aggressive statements