BOISE, Idaho -

A federal judge says he won't put a lawsuit against a major private prison company on hold while the FBI investigates the company for fraud.

U.S. District Judge Edward Lodge made the ruling this week in a lawsuit brought by a group of Idaho inmates against Corrections Corporation of America. The inmates claim they were injured in a gang attack because of understaffing; the prison company has denied the claims.

The Nashville, Tenn.-based company had asked the judge to put the lawsuit on hold, contending that if its employees had to testify in the lawsuit, they could be at risk of incriminating themselves in the FBI investigation. But the judge rejected that claim, saying that at this point it's not even clear if the investigation will lead to charges.