The link is following the situation but based off of what I have seen on X an altercation clearly broke out with a unit as the investigators tried to enter the property to arrest him.
Turns out there is a huge protests around his residence claiming he is innocent and that what is being done to him is wrong.
The Unit blocking is 55th Guard Corps according to Yonhap News. The Unit is responsible for perimeter security of the residence.
An official from the Corruption Investigation Unit said:
"The military unit, which is currently believed to be the capital defense command, is preventing the execution of the arrest warrant for investigators."