South Korea's opposition Democratic Party on Monday urged the country's Constitutional Court to swiftly rule on President Yoon Suk Yeol's impeachment, saying keeping the country waiting is "irresponsible" and deepening social division.

Thousands of South Koreans have filled the streets of downtown Seoul in massive rival rallies for and against impeached President Yoon Suk Yeol.

South Korean President Yoon Suk Yeol, who lawmakers voted to impeach and was indicted on criminal charges for declaring martial law last December, was cleared to be released from detention on Friday.