Today we heard shocking news that according to TMZ, actor Michael Clarke Duncan is in the intensive care unit at an L.A. hospital after going into cardiac arrest Friday morning.

The swift action of his girlfriend, Omarosa Stallworth, probably saved his life. Stallworth discovered Duncan in a state of cardiac arrest just before 2:00 AM.

We’re told Omarosa performed CPR and was able to resuscitate the 54-year-old.

MCD was transported to a nearby hospital where he was immediately admitted to the ICU.

Sources tell us … Duncan’s heart rate is now stable and Omarosa is by his side. Doctors are performing tests to figure out why the actor’s heart stopped in the first place.

Developing …