SAN DIEGO -- A retired US Navy captain has pleaded guilty, while another former Navy officer was sentenced to 17 months in prison in a wide-spanning Navy bribery scandal involving a Malaysian defense contractor.

Jeffrey Breslau, 52, of Georgia, pleaded guilty in federal court in San Diego on Thursday to a criminal conflict of interest charge. So far, 33 people have been charged in the case.

Leonard Francis, nicknamed "Fat Leonard," paid Breslau to ghostwrite his emails. Prosecutors said Francis overbilled the US Navy by more than $35 million for services for ships.

Also Thursday, retired Master Chief Ricarte Icmat David, of the Philippines, was sentenced to 17 months. Prosecutors said the 62-year-old allowed Francis to inflate invoices for services never rendered.

David's lawyer, Eliot Krieger, said the sentence was fair.

"I think the court understood that Mr. David took responsibility for his action and understood the seriousness for what he did," he said, adding that otherwise his client "has led an exemplary life."

Breslau's lawyer did not immediately respond to a request for comment. (AP)