Three people were stabbed at the Encino Hospital Medical Center in Los Angeles on Friday afternoon.
The victims, some of which are reported to be medical workers, are all said to be in critical condition.
The attacked barricaded themselves in a room inside the hospital after the stabbing.
The assailant was taken into custody at 5pm PST, according a representative for the hospital.
A victim being being brought out of Encino Hospital after being stabbed by an attacker on Friday afternoon

Emergency responders outside the Encino Hospital Medical Center on Friday afternoon after reports of stabbing attack inside
The hospital declared an ‘internal disaster,’ and halted admitting new patients or allowing visitors to enter.
The victims have been transferred to Northridge Hospital for treatment.
Footage from ABC 7 showed a victim being wheeled out on a stretcher.
A stretch of Ventura Boulevard outside the hospital remains closed.

The stretch of Ventura Boulevard outside the hospital remains closed as the situation plays out. Three people have been critically injured, and the attacker remains barricaded inside
