The opposition Japan Restoration Party has expelled House of Representatives lawmaker Shingo Nishimura following his problematic remark, the party's Secretary General Ichiro Matsui said Monday.
Nishimura had offered to secede from the party after telling fellow lawmakers last Friday, "There are swarms of South Korean prostitutes in Japan."
The decision came on Saturday and was conveyed to Nishimura Monday, said Matsui, who also serves as governor of Osaka Prefecture.
Matsui said he recommended Nishimura resign as a lawmaker and pave the way for his lower house seat to be returned to the party.
Nishimura offered to decide whether to resign on his own, Matsui said.
The party's co-leader and Osaka Mayor Toru Hashimoto has also come under international fire for defending the system of wartime military brothels.