South Korean police say about 35,000 people have rallied in Seoul to protest the impeachment of South Korean President Roh Moo-hyun.
On Saturday, more than 50,000 people gathered in the South Korean capital to call for Mr. Roh's reinstatement.
Mr. Roh was impeached by South Korea's opposition-controlled parliament Friday, on charges of election violations. The nine-member Constitutional Court must rule within six months on whether to uphold the move.
Meanwhile, North Korea has blamed the United States for the impeachment, calling it a "political rebellion" instigated by the United States.
Earlier Sunday, North Korea said it wants upcoming inter-Korean economic talks to be moved from South Korea because of what it called the "political chaos" in that country.
The two Koreas are scheduled to hold three days of economic talks starting Monday in the South Korean city of Paju. Pyongyang is asking that the talks be moved to Kaesong, just north of the Demilitarized Zone that divides the two countries.