Anti-Park protesters march in Seoul for 5th straight week

South Korean protesters wearing masks of South Korean President Park Geun-hye, right, and Choi Soon-sil, Park's longtime friend, march with their hands tied by ropes on black boards bearing their names during a rally calling for Park to step down in Seoul, South Korea, Saturday, Nov. 26, 2016. For the fifth straight weekend, masses of protesters occupied major avenues in downtown Seoul on Saturday, demanding the ouster of Park who is suspected of helping in the criminal activities of a secretive confidante who is accused of manipulating government affairs and extorting companies to build an illicit fortune. (AP Photo/Ahn Young-joon) (The Associated Press)

South Korean protesters march toward the presidential house as police officers sitting on the roof of a bus blocking the road to the building during a rally calling for South Korean President Park Geun-hye to step down in Seoul, South Korea, Saturday, Nov. 26, 2016. For the fifth-straight weekend, masses of protesters are expected to occupy major avenues in downtown Seoul on Saturday demanding the ouster of Park, who is suspected of helping in the criminal activities of a secretive confidante who is accused of manipulating government affairs and extorting companies to build an illicit fortune. (AP Photo/Ahn Young-joon) (The Associated Press)

South Korean protesters beat their drums as they march during a rally calling for South Korean President Park Geun-hye to step down in Seoul, South Korea, Saturday, Nov. 26, 2016. For the fifth-straight weekend, masses of protesters are expected to occupy major avenues in downtown Seoul on Saturday demanding the ouster of Park, who is suspected of helping in the criminal activities of a secretive confidante who is accused of manipulating government affairs and extorting companies to build an illicit fortune. (AP Photo/Ahn Young-joon. Pool) (The Associated Press)

Hundreds of thousands of South Koreans are rallying in Seoul calling for the ouster of President Park Geun-hye, who lawmakers may attempt to impeach by as early as next week.

Police say 260,000 people turned out for Saturday's protest against Park, the fifth straight weekend of demonstrations. Organizers put the turnout at 1 million.

Prosecutors accuse Park of assisting criminal activities of a secretive confidante who allegedly manipulated power from the shadows and extorted companies to build an illicit fortune.

The country's largest opposition party says it will seek to propose an impeachment motion for vote as early as Friday and no later than Dec. 9. Some members of Park's conservative party have vowed to support the impeachment attempt.