Catherine O'Hara was in hospital in a serious condition before her death

Shortly before Catherine O'hara died at age 71 on Jan. 27, she was taken to an Estall-authorized hospital, according to the Los Angeles Fire Department.

Here's more on Catherine O'Hara's health struggles.

The "Home Alone" star died in Los Angeles on January 30 at the age of 71 after battling an undisclosed illness.And now it has been found out that on the morning of his death he was taken to the hospital in "serious condition", the representative of the Los Angeles Fire Department told several media.

Authorities received a call at 4:48 a.m. on Jan. 30 about an unidentified woman "in her 70s" living in O'Hara's Los Angeles home, according to People.Upon arriving at the scene, she was taken to a hospital, where she died that day.

E!News reached out to the Los Angeles Fire Department for comment, but did not hear back.

O'Hara's hospitalization isn't the only glimpse of his final moments that has been shared.Creative Artists Agency, which represented the actress, previously revealed in a statement to E!News that she died "after a short illness" in Los Angeles.

Details of O'Hara's condition or official cause of death have not been released.

Before her death, the Schitt's Creek alum — who is survived by her husband, Bo Welch, and their children, Matthew Welch, 32, and Luke Welch, 28 — spoke candidly about her health, saying she had been diagnosed with inversion of the heart, or dextrocardia situs inversus.

For O'Hara, living with a rare congenital condition, which causes a person's heart and other internal organs to be on the other side of the body, partly inspired her comedy career.

In March, he told Variety, "I don't have a great life instinct," noting that his job as a comedian is to "seek the light."

O'Hara added: "My parents were both really funny and a sense of humor was always appreciated. Laughing and being funny was very much encouraged at our table."

After her death, many friends and family of The Studio actress emphasized her love of making people laugh with heartfelt tributes.

"What a gift it was to dance in the warm light of Kathryn O'Hara's genius all those years," Dan Levy — who starred alongside her in Schitt's Creek — shared on Instagram on Jan. 30. "I will cherish every funny memory I was lucky enough to make with him."

For more stars who have written tributes to O'Hara, read on...