WWE Hall of Famer, former California governor and actor Arnold Schwarzenegger has undergone emergency open-heart surgery at the Cedars-Sinai hospital in Los Angeles, California, according to a report from TMZ.

The report notes that 70-year-old Schwarzenegger was scheduled to have a catheter valve replacement and developed complications. The procedure usually means that a patient can avoid having open-heart surgery, however doctors decided that an emergency open-heart operation was needed.

Schwarzenegger is said to be in a stable condition.