( 2 nd LD ) Opposition parties to seek impeachment of acting president ( ATTN : RECASTS headline , lead , throughout with updates ) By Kang Yoon - seung SEOUL , Feb . 27 ( Yonhap ) -- South Korea ' s liberal opposition parties said Monday they will push for the impeachment of the acting president after he refused to extend an independent probe into a corruption scandal involving President Park Geun - hye . The main opposition Democratic Party said it will seek to oust Acting President and Prime Minister Hwang Kyo - ahn in cooperation with three other opposition parties . The People ' s Party also decided to push for an impeachment motion after a emergency meeting of its lawmakers . The Democratic Party said the floor leaders of the four opposition parties including the Bareun Party and the Justice Party will hold a meeting to discuss their future course of action . Earlier in the day , Hwang rejected the independent counsel ' s request to extend his legal term , which ends Tuesday . Rep . Choo Mi - ae of the main opposition called Hwang ' s rejection " the worst decision in the republic ' s history . " " It will be remembered as a decision that goes against the rule of law in favor of criminal acts by President Park Geun - hye and chaebol , " Choo said . Rep . Oh Shin - hwan of the Bareun Party said the decision contradicts the public ' s hope to find the truth behind the corruption scandal , calling the acting president ' s move an act of " tyranny . " The party spokesman warned that the public will not sit idle if the decision is based on his potential presidential ambitions . Since Park ' s impeachment in December , Hwang has been viewed as a potential presidential candidate for the conservative bloc , although he has refused to make his true intentions known . The People ' s Party echoed the view , claiming Hwang is only struggling to shield Park despite the public ' s calls for a thorough investigation . President Park Geun - hye ( Yonhap ) colin @ yna . co . kr ( END )