Hillary Clinton unexpectedly left a 9/11 event in New York City because she didn't feel well, her campaign said Sunday.
"During the ceremony, she felt overheated so departed to go to her daughter's apartment, and is feeling much better," said Clinton spokesman Nick Merrill.
He said Clinton "attended the September 11th Commemoration Ceremony for an hour and thirty minutes this morning to pay her respects and greet some of the families of the fallen."
New York temperatures on Sunday were in the low 80s, with humidity in the mid-40s.
The Democratic nominee left her daughter Chelsea's apartment shortly after 11:45 a.m., waving at people gathered on the sidewalks.
Clinton also hugged and took a picture with a little girl who was allowed past the security line.
Asked if she was feeling better, she said: "Yes ... thank you very much."
Clinton also told reporters: "I'm feeling great. It's a beautiful day in New York."
The incident came as the campaign of Republican nominee Donald Trump has made various claims about Clinton's health. In a column in USA TODAY, former New York major Rudy Giuliani said there are unanswered questions about Clinton's health, although he added that "I hope Secretary Clinton is perfectly healthy."