Brazil's federal prosecutor's office wants access to an independent report from Caixa Econômica Federal looking into potential irregularities committed by CEO and President Gilberto Occhi, Reuters reported, citing a letter sent by the government body.

The prosecutors have given Occhi 48 hours to comply with the request and expect access to the document by March 29, which was commissioned by Caixa and is under secrecy. The CEO could be held liable for the accusations if he refuses to obey, the prosecutors said.

"I note that, under the terms of paragraph 1 of article 8 of said law, no authority may, under any pretext, oppose to the Public Prosecutor's Office the exception of secrecy, without prejudice to the confidentiality of the information, registration, data or document provided to him," prosecutors Frederico Siqueira Ferreira and Anselmo Henrique Lopes Cordeiro said.

"The unjustified absence and undue delay in complying with the requisitions of the Public Prosecutor's Office shall imply the responsibility of those who are in charge," the prosecutors noted.

In January, Reuters said President Michel Temer could still be implicated in alleged irregularities committed by Caixa's vice presidents amid reports on Occhi. At the time, an independent report requested by Caixa based on investigations conducted by the federal prosecutors' office recommended launching a probe on Occhi for allegedly obtaining bribes from members of the Progressive Party.

A new investigation centering on Occhi was initiated at the time, Reuters cited a source as saying.

Along with its request for access to the confidential document, the federal prosecutors recommended that Caixa's new president be chosen during an impersonal selection process.