ISLAMABAD

A total of 30 South Korean military service members are under investigation over their alleged involvement in President Yoon Suk Yeol's failed bid to impose martial law on Dec. 3, local media reported Wednesday.

Authorities have so far notified 17 generals and 13 field grade officers that they being probed, according to Yonhap News Agency.

According to a Defense Ministry report submitted to lawmakers in the National Assembly, Chief of Staff of the Army Gen. Park An-su, who was appointed as martial law commander, is the highest-ranking service member and the only four-star general to be under investigation.

Also on the list are five three-star generals, including Vice Chairman of the Joint Chiefs of Staff Lt. Gen. Jeong Jin-pal, who served as deputy martial law commander; Lt. Gen. Won Cheon-hee, head of the Defense Intelligence Agency; Lt. Gen. Yeo In-hyung, former head of the Defense Counterintelligence Command; Lt. Gen. Kwak Jong-keun, former chief of the Army Special Warfare Command; and Lt. Gen. Lee Jin-woo, former head of the Capital Defense Command, according to the agency.

Some officers including Gen. Park have already been indicted on charges of insurrection and abuse of power.

Yoon is also currently under criminal investigation for abuse of power and leading an insurrection, making him the first sitting president to be arrested. He is also subject to a travel ban.

Suspended from office since Dec. 14, when parliament voted to impeach him, his case is now before the Constitutional Court, which has up to six months to decide whether to remove him from office or to reinstate him.