Yoon Suk Yeol, South Korea's impeached president, was arrested on Wednesday.This was the South Korean authorities' second attempt to arrest Yoon. Yoon was impeached on December 14 after he attempted to impose martial law, triggering protests.South Korean President Yoon Suk Yeol was arrested by investigators early on Wednesday morning, local time.Yoon's arrest comes after weeks of attempts by South Korean anti-corruption investigators to bring him in for questioning. Yoon has repeatedly defied attempts to arrest him.During a particularly tense standoff on January 3, investigators had to stand down after six hours when Yoon's security team barred them from taking the president.Yoon was impeached on December 14. South Korean lawmakers voted to remove him from duties after a stunning declaration of martial law, which triggered large-scale protests and calls for his resignation.This story is developing. Please check back for updates.