Rallies are being held for the fourth weekend in a row in 46 locations nationwide on Saturday demanding the president's resignation over the Choi Soon-sil scandal.
According to police and civic groups, some 15-hundred civic and social organizations are coming together for the rallies.
In the capital Seoul, participants gathered in four areas including Dongdaemun and near Hongik University at 2 p.m. and are expected to march toward Gwanghwamun Plaza where a candlelight vigil will begin at 6 p.m.
At Gwanghwamun, speeches by citizens will be followed by the lighting of candles. After the main event, protesters are expected to march toward the presidential office.
Organizers estimated some 500-thousand demonstrators will gather in Seoul and one million nationwide. Police said it's difficult to make a projection but forecast at least 50-thousand to show up for the rally in the capital city alone.
Similar rallies are also taking place nationwide including in the cities of Gwangju and Busan.
Source : KBS World Radio