UPDATE 3-Brazil graft probe could ensnare Eletrobras, foreign firms -prosecutor
June 23, 2015 at 20:12 PM EDT
CURITIBA, Brazil, June 23 (Reuters) - Brazil's biggest corruption investigation could spread to its largest electric utility, Eletrobras, and more than a dozen foreign companies, a lead prosecutor said on Tuesday, in a sign of further turbulence for the country's business and political establishment.