One of Renault boss Carlos Ghosn's senior executives received an additional six-figure salary unknown to the carmaker's board via the Dutch joint venture overseeing its alliance with Nissan, according to sources and documents seen by Reuters.

Ghosn and Nissan senior director Greg Kelly, who are at the center of a financial misconduct scandal engulfing the carmaking alliance, approved payments totalling €500,000 ($572,000) to Renault General Secretary Mouna Sepehri, who is responsible for corporate governance in her role as board secretary.

There is nothing to suggest that the payments by Renault-Nissan BV (RNBV) were illegal or violated Renault-Nissan rules, but they highlight governance issues and potential conflicts of interest.