South Korea scandal: President Park's friend Choi detained
The woman at the centre of a political scandal threatening the position of South Korea's president has been detained.
Choi Soon-sil, a long-time friend of President Park Geun-hye, is accused of influence peddling and interfering in state affairs.
She was interrogated on Monday after apologising for an "unpardonable crime".
Prosecutors have 48 hours to decide if they will formally arrest Ms Choi.
She was placed under emergency detention late on Monday with prosecutors saying they feared she may destroy evidence and was at flight risk, according to South Korea's Yonhap News Agency.
"She has fled overseas in the past, and she doesn't have a permanent address in Korea, making her a flight risk," a prosecution official told Yonhap. "She is also in an extremely unstable psychological state."