as russia s brutal assault from the sky intensifies. on the front lines ukrainian forces claim five cylvillages h been liberated. no response from russia on this but it s what s happening in the air that has ukraine on high alert. fighter jets today patrolling kyiv after news of more russian missile strikes. at a market, suburbs near a nuclear plant, both among putin s latest targets. also today reports of arrests now being made after putin s prize bridge to crimea was severely damaged a few days ago. matthew chance is with us now and has more on all of this. tell us about these arrests. what are you learning, matthew? reporter: hey, ana, that s right. this is a new development that s come to us within the past few hours out of russia where the russian federal security service, the fsb, who are investigating this attack on the bridge linking the russian mainland with crimea say they ve made eight arrests of people they believe may be responsible and connected with the dev