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.

South Korea’s President Yoon Suk Yeol accused the opposition of trying to paralyze his administration and siding with North Korea in a defiant speech Thursday as the chief of his own party called for his impeachment.