A faulty oxygen tank might have contributed to the sudden death of Martin Short's wife, Nancy Dolman, RadarOnline.com reports. Dolman died this past Saturday at the couple's Pacific Palisades home in California. She was 58.

On Saturday morning, the Los Angeles City Fire Department went to their home in response to a 911 emergency call. In the 911 call, a woman is heard saying Dolman is "not breathing" and that "she's going to die."

"This patient... was on oxygen, we had problems with the gauge here in the tank, she's off oxygen," the woman said.

The dispatcher tells the woman to perform CPR. "If she is able to fight you she is able to breathe on her own," the operator said.