"Mayor Rudy Giuliani is out of the ICU and will spend some time recovering before leaving the hospital," the spokesman said.
The update comes after officials said that the 81-year-old Giuliani was hospitalized in critical condition on Sunday.
They said on Monday that he is recovering from pneumonia and is being monitored as a precautionary measure.
Giuliani served as New York City's mayor from 1994 to 2001. Spokesman Ted Goodman said that on 9/11, Giuliani "ran toward the towers to help those in need, which later led to a diagnosis of restrictive airway disease."
"This condition adds complications to any respiratory illness, and the virus quickly overwhelmed his body, requiring mechanical ventilation to maintain adequate oxygen and stabilize his condition," Goodman said.
Giuliani will attempt to apply for the World Trade Center Health Program, believing his recent ailment is linked to Sept. 11th exposure.
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