Brazil President Jair Bolsonaro ended the anti-corruption probe “Operation Car Wash” on Wednesday, stating that “there is no more corruption in the government.”

Operation Car Wash began six years ago to investigate allegations that executives at Petrobas, a state oil company, accepted bribes from construction firms in exchange for contracts at inflated rates. The Workers’ Party also allegedly got involved in the corruption by using some of the funds to buy the votes of politicians and help with political campaigns. Many high-ranking politicians are among the accused, including former president Luiz Inacio Lula da Silva, who is currently serving a 12-year prison sentence.

The announcement to end Operation Car Wash comes after the Attorney General decided last month to extend the investigation through January 31.

More recently, critics of the investigation have accused the investigtion of going too far and suppressing political rivals.