Hillary Clinton left a service at the Sept. 11 memorial in New York City on Sunday early.
According to a statement from Clinton's campaign spokesperson, the candidate felt "overheated," so she went to her daughter's apartment. Clinton is "feeling much better," the statement said.
SEE MORE: Dr. Drew's Concern For Hillary Clinton's Health Is Probably Unfounded
That statement came more than an hour after reporters following the campaign tweeted about the incident, saying the 68-year-old left without her press pool. Her whereabouts at the time were unknown.
Fox News, citing an unnamed law enforcement source, said Clinton was having some type of "medical episode." A witness reportedly told the network Clinton's knees "buckled" and she lost a shoe.
SEE MORE: A Doctor Wrote Donald Trump's Health Report — In Only 5 Minutes
The incident comes as Donald Trump has questioned whether she is healthy enough to serve as president. Clinton has said she is healthy and fit to be president.
