South Korea’s ruling party has thrown its support behind attempts to impeach embattled President Yoon Suk Yeol over his ill-fated decision to declare martial law that sparked a political crisis and widespread public anger in the country.

The leader of South Korea’s ruling party said Friday that President Yoon Suk Yeoul needs to be immediately suspended from duty to protect the country from “grave danger,” in a dramatic reversal of opinion that compounds the pressure building on Yoon ahead of a impeachment vote in parliament.