Hillary Clinton's campaign says the Democratic presidential nominee left a 9/11 anniversary ceremony in New York after feeling "overheated."
The campaign says she's "feeling much better."
Clinton spokesman Nick Merrill says in a statement Sunday that the former secretary of state attended the morning ceremony for 90 minutes "to pay her respects and greet some of the families of the fallen.
He adds, "During the ceremony, she felt overheated so departed to go to her daughter's apartment, and is feeling much better."
Hillary Clinton's doctor says the Democratic presidential nominee was diagnosed on Friday with pneumonia, put on antibiotics and advised to rest and modify her campaign schedule.
Dr. Lisa Bardack says in a statement that Clinton is "recovering nicely" after attending a Sept. 11 anniversary event in lower Manhattan. Clinton was seen on video appearing to struggle to stay on her feet as she got into a vehicle to leave the event.
Bardack says Clinton has been experiencing a cough related to allergies, and in a follow-up examination Friday of her cough, Clinton was diagnosed with pneumonia.
The statement says Clinton became overheated at the 9/11 event and dehydrated, but is now rehydrated.