The main opposition Democratic Party proposed a special counsel bill on Monday to investigate whether President Yoon Suk Yeol committed treason and other violations during his short-lived declaration of martial law last week.

Rep. Kim Yong-min, the DP's deputy floor leader for policy, and Rep. Kim Seung-won submitted the bill, calling on the special counsel to investigate Yoon's alleged "insurrection."

The DP also proposed a bill mandating a special counsel probe into allegations involving first lady Kim Keon Hee, including her alleged involvement in a stock manipulation scheme and interference in election nominations through a power broker.

This is the fourth version of the bill targeting the first lady following a similar proposal vetoed by Yoon last month, which was ultimately scrapped in a revote on Saturday.

The bill was just two votes short of the 200 votes needed from the 300-member National Assembly to override the veto. (Yonhap)