This transcript has been automatically generated and may not be 100% accurate.

... I ... Tokyo's Fire Department released a video Wednesday a fire fighters at the Fukushima nuclear power plants ... the men were taking on the hazardous task of spraying water from fire trucks to cool the overheated fuel rods of the quake crippled plants ... their work bought more time for engine years we've been working around the clock to try to restore power at the complex ... but the crisis at the plant appears to be far from over ... workers were ordered to leave the site after black smoke began rising from one of its six reactors ... high radiation levels have also halted workers struggling to cool the Number two reactor ... Japan has raised the severity rating of the nuclear crisis to level five ... putting it on par with the three Mile Island accident in Pennsylvania in nineteen seventy nine ... the nuclear disaster in Chernobyl Ukraine was a seven on that scale ... Travis Sprecher ... Reuters ...