South Korea’s former defence minister Kim Yong-hyun has been arrested over his role in a martial law declaration that plunged the country into turmoil, local media reported on Sunday.

Kim had already resigned after the brief imposition of martial law late on Tuesday by President Yoon Suk Yeol, which saw soldiers and helicopters sent to parliament.

Yoon was forced to rescind the order hours later and parliament voted down his decree. Kim had already been slapped with a travel ban.

Police have launched an investigation into Yoon and others for alleged insurrection.

The prosecutors’ office was not immediately available for comment on Kim’s arrest.

It came as Yoon survived an impeachment motion in parliament on Saturday, despite huge street protests outside.