Update (2336 EST): The suspect has been taken into custody, alive, and transported via ambulance out of the hospital.

Update (2021 EST): Suspect taken into custody, says hospital spokesperson. One doctor and two nurses stabbed by suspect.

Update (2000 EST): Internal Emergency declared and LAPD SWAT is on scene.

Emergency crews are on the scene and three are critically injured after a man stabbed three people, two reportedly are medical workers at the hospital.

The man has reportedly barricaded himself in a room and police are still arriving.

This is developing.