NEW : But he said the nitrogen injections will resume , and the leaks were not affecting the stability of the reactor . The agency raises the level from 5 to 5 . 7 is the highest possible level and is on par with Chernobyl . Chernobyl 's government has called for further evacuations . Cities covered by about a month 's orders should evacuate in Monday , Susan Olson says .
NEW : The agency raises the level from 5 to 5 . 7 is the highest possible level and is on par with Chernobyl . Chernobyl 's government has called for further evacuations . Cities covered by about a month 's orders should evacuate in Monday , Susan Olson says .