New York (CNN Business) Rupert Murdoch, the 88-year-old billionaire media mogul, was hit with a recent bout of pneumonia, people familiar with the matter told CNN Business.

One of the people, a person close to Murdoch's family, said the pneumonia occurred nearly three weeks ago. Two other people familiar with the matter added that he had gone to a Los Angeles hospital. It is unclear whether he was admitted.

People who spoke to CNN Business all stressed that Murdoch was now doing well and that he was even making business calls to Fox News personnel.

Murdoch is also expected to call into a London board meeting on Friday, the person close to the family said.

Murdoch suffered a serious back injury in 2018 while vacationing on a yacht. He recovered, and people who have interacted recently with Murdoch have told CNN that he appeared to be in good health prior to the pneumonia.

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