Toshiba Corp. said Friday it has set up a third-party committee to probe accounting irregularities regarding its past infrastructure projects, amid growing fears the matter may spiral further and erode trust in the electronics giant.

The company said in a statement that the committee is comprised of two certified public accountants and two lawyers, including Koichi Ueda, a former superintending prosecutor of the Tokyo High Public Prosecutor's Office. Ueda heads the committee.

The in-house investigation has centered on three divisions inside the company that undertake infrastructure projects in electricity generation, transportation and other areas.