A deepening political crisis in South Korea has not diminished the military readiness of 28,500 troops stationed in the Asian state, a U.S. official said on Friday, but Washington is closely monitoring the situation.

By Joyce Lee SEOUL (Reuters) -South Korea's leadership crisis will play out in the Constitutional Court, which will decide the fate of President Yoon Suk Yeol and Prime Minister Han Duck-soo, both impeached and suspended from power over a short-lived martial law.

South Korea's main opposition party introduced a bill to impeach acting President Han Duck-soo on Thursday, a day before it plans to seek a vote on the move, which could deepen a constitutional crisis triggered by a short-lived martial law.

The country has passed the U.N. threshold of a "super-aged society," with one in five of the population now aged over 65.

NBC News investigates health insurance companies denying cancer patients coverage for potentially life-saving treatments. South Korea’s interim president is impeached just two weeks after the ouster of the country’s former leader. And a small Tennessee town is still in recovery mode after Hurricane Helene.

South Korea has voted to impeach its acting president Han Duck-soo, two weeks after parliament voted to impeach its President Yoon Suk Yeol. A total of 192 lawmakers voted for his impeachment, more than the 151 votes needed for it to succeed.

South Korea has become a “super-aged” society with one in five people aged 65 or older, official data showed Tuesday, underscoring the country’s deepening demographic crisis.

The country's National Assembly already impeached and suspended President Yoon Suk Yeol earlier this month for imposing an unpopular martial law.

President Yoon Suk Yeol Yoon imposed martial law in the middle of the night earlier this month, plunging South Korea into its worst political crisis in decades.

South Korea’s business confidence deteriorated the most since the global outbreak of Covid-19, reflecting mounting concerns about an economy grappling with political turmoil and facing Donald Trump’s tariff threats.

Demonstrations were planned across South Korea on Saturday by supporters and opponents of suspended president Yoon Suk Yeol two weeks after he was impeached.