Presidential candidate Hillary Clinton was diagnosed with pneumonia on Friday, according to a statement from her doctor Dr. Lisa R. Bardack, M.D. regarding her health issues in recent days.

The Clinton campaign provided the statement late Sunday afternoon after she was examined at her home in Chappaqua. She’d returned there from New York City after feeling “overheated” during a commemoration ceremony for the victims of the Sept. 11 attacks and had to leave after an hour and 30 minutes.

The statement says:

“Secretary Clinton has been experiencing a cough related to allergies. On Friday, during follow up evaluation of her prolonged cough, she was diagnosed with pneumonia. She was put on antibiotics, and advised to rest and modify her schedule. While at this morning’s event, she became overheated and dehydrated. I have just examined her and she is now re-hydrated and recovering nicely.”

Earlier in the day, spokesman Nick Merrill said in a statement, “During the ceremony, she felt overheated so departed to go to her daughter’s apartment, and is feeling much better.”

The ceremony at the Sept. 11 memorial plaza at the World Trade Center site marked the 15th anniversary of the attacks. Merrill said that Clinton attended “to pay her respects and greet some of the families of the fallen.”

She departed without warning, as NPR’s Tamara Keith tells our Newscast unit. “Her traveling press corps was not taken with her and didn’t know her whereabouts for quite some time,” she says.

Video published on Twitter shows Clinton being assisted into a van. She appears to be unsteady on her feet and wobbles on her way into the vehicle.

Video from CNN shows her waving to the crowd and taking a photograph with a young child before departing.

According to the National Weather Service, the temperature was 79 degrees with 54 percent humidity at 9:51 a.m. in Manhattan.

“This comes less than a week after Clinton had a coughing fit at a rally in Cleveland. She said she was suffering from seasonal allergies,” Tamara adds.

Donald Trump also attended the commemoration.

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