Internal affairs minister Tsutomu Sato suggested Tuesday he may review the four-way split of Japan Post services.

"It needs to be managed based on the current situation and we need to launch a discussion," Sato said in Naha, Okinawa Prefecture.

Sato's remark came after he gave the green light Monday to Yoshifumi Nishikawa's reappointment as head of Japan Post Holdings Co., putting an end to a political feud that led to the resignation of Kunio Hatoyama, his predecessor at the Internal Affairs and Communications Ministry.