Park exit 'won't affect market stability'

President Park Geun-hye's ouster from office will not have an impact on the stability of South Korea's financial markets, the country's top regulator says.

"We have completed preparations enough to respond," the Yonhap News Agency cited Yim Jong-yong, chairman of the Financial Service Commission, as saying.

The Bank of Korea said separately its governor would hold an emergency meeting at 3pm (5pm AEDT) on a Constitutional Court ruling to remove Park from office earlier on Friday.