RIO DE JANEIRO (AP) — Authorities have again arrested Brazilian businessman Eike Batista, once Brazil’s biggest fortune.

Brazil’s federal police say that Batista was arrested on suspicion of market manipulation and money laundering. He can be held for five days under the warrant, though it could be extended for a second five-day period.

Batista was arrested Thursday at his Rio de Janeiro home, where he was already under house arrest.

Batista was convicted of corruption and money laundering last year and sentenced to 30 years in prison. He was found guilty of paying around $16.5 million in bribes to the Rio de Janeiro governor to gain an advantage in government contracts.

The arrest is an offshoot of Brazil’s massive anti-graft investigation, known as “Operation Car Wash”.