NEW YORK (CNN/Money) - Federal authorities are investigating members of the Rigas family for possible tax violations related to their alleged looting of the cable-television company they founded, a newspaper reported Wednesday.

The probe by the U.S. Attorney's office in the Middle District of Pennsylvania follows last month's arrest of John Rigas and two of his sons, all charged with using the company as their "personal piggy bank," withdrawing hundreds of millions of dollars out of the nation's sixth-largest cable TV provider. Adelphia filed for bankruptcy-court protection in June.

If the Rigases failed to disclose the alleged payments as income on their tax filings, they could face felony charges of tax evasion or filing false returns, the Wall Street Journal reported. If convicted, the Rigases face up to three years imprisonment for each count.

The Adelphia case is just the latest among a litany of corporate accounting and governance scandals plaguing U.S. companies in recent times. The arrest of the Rigas family members at their New York City apartment drew the attention of President Bush, who hailed the case as the latest government effort to crack down on corporate crime.

Though unusual to file charges against the same people in separate jurisdictions, government officials decided to have Pennsylvania prosecutors focus on tax issues so they could participate in the wider investigation of Adelphia, which is headquartered in Coudersport, Pa.

The company could face criminal charges following a civil complaint of fraud by the Securities and Exchange Commission.

Rigas, the company's 78-year-old founder, and sons Timothy and Michael, the former chief financial officer and former operations vice president, respectively, were charged with securities fraud, wire fraud and bank fraud. Adelphia has said it supports the arrests.