Japanese Foreign Minister Taro Aso said Sunday he sees no problem with a political party, rather than the government itself, conducting a reinvestigation into the politically sensitive issue of wartime brothels run by the Imperial Japanese Army.

"I haven't heard that the government is conducting an investigation," Aso said on a Sunday morning talk show on Fuji Television. "It is not necessarily bad to conduct another round of investigations. It may be better perhaps that it is done by the party."

His comment was made in reference to a recent move by some members of the governing Liberal Democratic Party, to which he belongs, to seek a reinvestigation following a move in the U.S. Congress to seek a resolution urging Japan to acknowledge and apologize for forcing Asian women to provide sex for Japanese soldiers before and during World War II.