Two partners at Price Waterhouse in India have been arrested in connection with the $1bn accounting fraud at Indian IT supplier Satyam.
The two workers, from the PWC division, were arrested by Andhra Pradesh state police over the weekend.
Price Waterhouse in India was the firm responsible for auditing the accounts, which former chairman B Ramalinga Raju admitted had been falsified for years.
A statement from Price Waterhouse India said, "We greatly regret that two partners have been detained today for further questioning. We do not know the basis for them being detained."
The company said it has fully cooperated with the Indian authorities since the fraud scandal came to light.
"We share the regulators' concern in understanding the full extent of the fraud and how it was accomplished. Like everyone else, we were shocked by the massive fraud at Satyam and by the steps undertaken to conceal it. PW-India will continue to co-operate fully with the authorities."
Raju admitted that he had cooked the company's books for several years. The company's survival has been put into question as customers consider their options and the company's cash-flow runs low.