South Korean investigators try to arrest President Yoon Suk-eun.

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South Korean investigators have been trying to arrest President Yoon Suk-yeol as part of an investigation into treason and abuse of power after last month’s failed attempt to impose martial law.

The Office of the High Commissioner for Corruption Investigation announced on Friday morning that it had begun executing arrest warrants. Yun.

Television footage shows a team of bureau officials entering Yoon’s residence in central Seoul, with about 3,000 police officers in the area.

If arrested, Yoon will become the first South Korean president to be imprisoned.

Yun caused a major political crisis. South Korea In his failed efforts to impose martial law.

Although they were impeached by parliament last month, the move had to be approved by the country’s constitutional court.

The independent anti-corruption agency is expected to raise questions about Yon’s removal after lawmakers allegedly sent troops into the National Assembly to reject the short-lived martial law.

Yun sent a letter to hundreds of supporters who gathered outside his residence on Wednesday.

“The country is in danger because of anti-government forces. Together with you, I will fight till the end to protect the country,” he said in the letter.

Under South Korea’s constitution, the president is immune from criminal charges unless he is charged with sedition or treason. Acting President Choi Sang-mok on Tuesday appointed two judges to the court, filling two vacancies on the nine-member Constitutional Court.

The court’s eight rival judges will hold a second hearing on Friday on whether to impeach Yoon. The court has until June to issue a ruling, although that deadline could be extended. At least six votes are needed to approve Yoon’s impeachment. Presidential elections must be held within 60 days of impeachment.

Political turmoil has weighed on South Korea. EconomyDonald Trump is imposing high US tariffs on his second term in the White House. The government on Thursday upgraded this year’s growth forecast to 1.8 percent from 2.2 percent, and is considering an additional budget to boost sluggish domestic consumption.

Choi on Friday ordered officials to take measures to stabilize financial markets. He said he would continue to meet weekly with top financial officials, including Bank of Korea Governor Rhee Chang-yong, to monitor market conditions. On Thursday, Rei warned of growing downside risks to the Korean economy and said the bank would be “flexible” with a reduced pace in the face of unprecedented political and economic uncertainties.

South Korean stocks and currencies were among the best performers in Asia last year, partly due to political turmoil, with the Kospi stock index down nearly 10 percent and the winning trade at its lowest level since 2009. The country’s stock market opened slightly. Higher on Friday.