Actor Ahn Jae Wook recently had an emergency brain surgery.

Ahn Jae Wook's agency revealed that the actor suffered from sub arachnoid hemorrhage, which is bleeding between the brain and the thin tissues that cover the brain.

The actor was in Las Vegas over the weekend for a meeting with his agency's CEO, when he started to suffer from really painful headaches.

His agency explained, “He started complaining of headaches, he was vomiting, and feeling really bad. The ambulance was called and he was taken to the hospital and after having CAT and MRI scans, he underwent surgery for sub arachnoid hemorrhage.”

They added, “The surgery went well, and the actor is currently being take care of in the Intensive care unit at a large hospital in America. He will need care for the next four weeks.”

The actor assured fans that he is taking care of himself and not to worry too much for him, and he hopes he will see his fans soon.