South Korea's military bolstered its surveillance posture against North Korea on Friday, an official said, as the Constitutional Court is set to deliver its ruling on President Yoon Suk Yeol's impeachment later in the day.

South Korea's Yoon Suk Yeol rose from star prosecutor to the presidency in just a few years, but after a bungled martial law decree last year, he could on Friday become the country's second president to be booted from office.

South Korea’s Constitutional Court is set to rule on whether to dismiss or reinstate impeached President Yoon Suk Yeol, four months after he threw the country into turmoil with an ill-fated declaratio