Former South Korean president Park Geun Hye was arrested and transferred to a detention centre south of Seoul on Friday after a court issued a warrant for her arrest, the Yonhap news agency reported.
"The need for her arrest is acknowledged because there is probable cause to charge her and a concern of evidence being destroyed," Yonhap cited Judge Kang Boo-young as saying.
Park, South Korea's first female president, was impeached by the National Assembly in December on charges of colluding with her confidante Choi Soon Sil to extort money from top South Korean companies and allowing Choi to interfere with state affairs.
The impeachment removed the immunity that had protected Park from criminal prosecution. Park now faces charges of bribery, coercion, abuse of power and leaking state secrets, according to Yonhap.
Park had herself appeared before the court on Thursday. Prosecutors requested her arrest on Monday, after interrogating her for 14 hours last week.
State prosecutors have up to 20 days to level formal charges against Park in order to keep her in detention awaiting trial.