Former Brazil President Michel Temer was arrested on Thursday after Federal Police executed several warrants arising from an investigation, deemed “Operations Radioactivity,” in the management of a nuclear plant in Rio.

Brazilian prosecutors allege that Temer acted as the leader in a criminal organization, accepting approximately 1.8 billion in bribes and ongoing kickbacks, and committing acts of corruption and money laundering, particularly in operation of the nuclear plant in Rio. The arrest comes under the large umbrella of the “Car Wash” investigation.

As result of the anti-corruption investigation, numerous officials have come under scrutiny by law enforcement, including several former presidents. In July former President Luiz Inacio Lula da Silva was convicted of corruption and money laundering and sentenced to almost 10 years in prison. In 2016 former president Dilma Rousseff was impeached for corruption amidst a time of economic turmoil.

The implications imposed from the anti-corruption measure “Operation Carwash” hangs over the economy of Brazil. In 2017 chargers were filed against Temer for passive corruption, and the Brazilian Supreme Court authorized a corruption probe into him for his alleged involvement with the bribery of a potential witness in a major corruption case. A month later, however, Brazil’s top electoral court dismissed a case against Temer for alleged illegal campaign funding in the 2014 election which could have resulted in his removal from office. That same year, Brazil’s Supreme Court ordered investigations into eight cabinet ministers and dozens of lawmakers who are allegedly linked to the country’s so-called “car wash” bribery scheme. More than 100 individuals and 50 politicians have been arrested in connection to the scandal, and charges have been filed against some of Brazil’s most powerful politicians.