- --the war in Ukraine. And this evening, thousands are now fleeing the area around Europe's largest nuclear power plant, of course, inside Ukraine. ABC's Britt Clennett in Ukraine with a Ukrainian who works at that plant, and his warning tonight. BRITT CLENNETT: Tonight, Europe's largest nuclear power plant under increasing and relentless attack, forcing thousands to flee as shelling hits dangerously close. Around 30 miles northeast in Zaporizhzhia, we spoke with one of the plant's engineers who left there yesterday to help his family evacuate, but is going back. Asking us not to show his face for fear of retaliation. How much should the world be worried about the safety of the plant? - [NON-ENGLISH SPEECH] BRITT CLENNETT: "Of course. Of course," he says. "Every day they come closer and closer to the units." And he has a bleak warning if the spent fuel containers are attacked. - [NON-ENGLISH SPEECH] BRITT CLENNETT: "It might well be like another Chernobyl," he says. "If the storage is hit badly, there will be radioactive clouds and pollution." Columns of cars streaming in from the occupied areas, including in Enerhodar, the site of the plant. - [NON-ENGLISH SPEECH] BRITT CLENNETT: "It's bad there. It's hard. It's hard." This woman from Enerhodar tells us. "Let our authorities go there and have a look." This is new video circulating online showing explosions at an ammunition depot on the Crimean Peninsula where the Russian Defense Ministry confirmed a fire broke out, forcing evacuations. It's the second suspected Ukrainian attack on the peninsula in just over a week. The first destroying Russian warplanes at their air base. And tonight, Moscow saying the International Atomic Energy Agency will be allowed safe access to inspect the site, but only on Russian terms and not through Ukraine. David. DAVID MUIR: Great. Britt Clennett right there in Ukraine for us. Britt, thank you.