SOUTH KOREA’S opposition vowed to impeach the acting president yesterday, alleging he was “shielding” his disgraced boss Park Geun Hye.

The three main opposition parties warned Prime Minister and acting president Hwang Kyo Ahn after he denied a request to extend corruption investigations into Ms Park past today’s deadline.

Minjoo leader Choo Mi Ae — whose party is the largest in parliament — said the decision showed Mr Hwang was trying “to become Park’s shield to protect her and her associates.”