Zsa Zsa GaborZsa Zsa Gabor's poor health has landed her back under a doctor's care at the UCLA Medical Center.

The actress was taken back to the hospital today, TMZ reports.

"I just called an ambulance. She has to go back to UCLA," her husband, Prince Frederic von Anhalt, tells TMZ.

According to von Anhalt, Gabor was unresponsive when he called 911.

The 93-year-old underwent surgery to remove blood clots earlier in August.