Hyonhee Shin

Kim became the first official to be arrested over Yoon's martial law declaration.

South Korean President Yoon Suk Yeol gave an order to "drag out" lawmakers from parliament after he declared martial law, an army commander said amid concerns of a power vacuum with Yoon's office saying it had "no official position" on who was running the country.

State media KCNA published an article on what it described as growing "social unrest".

Here is what we know about the investigations so far.

Lee Jae-myung said there was still a possibility of another spontaneous late-night declaration.

At his confirmation hearing three months ago, South Korea's defence minister Kim Yong-hyun rejected accusations from the opposition that he wanted to impose martial law. It was, the conservative hardliner said, political propaganda.

North Korean leader Kim Jong Un has accused the United States of ramping up tension and provocations, saying the Korean peninsula has never faced a greater risk of nuclear war, state media KCNA said on Friday.

South Korean authorities launched an investigation on Tuesday after three people died during a car test at a Hyundai Motor plant in the city of Ulsan, police told Reuters.

South Korea's main opposition leader Lee Jae-myung was indicted on Tuesday on charges alleging he used more than 100 million won ($71,900) of public funds for personal purposes when he was a governor, Yonhap News Agency reported.

North Korean leader Kim Jong Un urged the country's military to improve capabilities for fighting a war in a speech last week, state media KCNA said on Monday, after Pyongyang dispatched thousands of troops to Russia.