The Clinton campaign released a statement to say that she had recovered shortly afterwards
Hillary Clinton left a September 11th memorial service in New York on Sunday as a result of feeling "overheated", according to her campaign.
Clinton, who was one of a number of dignitaries attending the service on Sunday morning at Ground Zero, left early after she felt unwell.
Reports of her unscheduled departure were broadcast by Fox News, with reporter Rick Leventhal stating that a source near her motorcade had told him that it was clearly some sort of "medical episode", and that the Democratic candidate had to be helped into her vehicle by members of the secret service.
According to a statement from Nick Merrill, spokesperson for the Clinton campaign, she began to feel "overheated" during the course of the ceremony and went to her daughter's apartment in the city to escape the heat.
One Twitter user posted a video on Sunday, reportedly showing Clinton waiting for her motorcade and being helped into her vehicle when it eventually arrived.
Hillary Clinton 9/11 NYC pic.twitter.com/q9YnsjTxss— Zdenek Gazda (@zgazda66) September 11, 2016
"Secretary Clinton attended the September 11th Commemoration Ceremony for just one hour and 30 minutes this morning to pay her respects and greet some of the families of the fallen," read the statement.
"During the ceremony, she felt overheated so departed to go to her daughter's apartment, and is feeling much better."
The episode comes off the back of calls from Donald Trump for her to release her medical records, while others in the camp, including Trump surrogate Rudy Giuliani, have implied that the Democratic candidate is dealing with a medical issue.
I think that both candidates, Crooked Hillary and myself, should release detailed medical records. I have no problem in doing so! Hillary?— Donald J. Trump (@realDonaldTrump) August 28, 2016
Speaking a few weeks, ago, Giuliani said that people should Google "Hillary Clinton illness" and see what comes up. However, Clinton has been dealing with the claims about her health to this point with good humour, stating that it was part of "wacky strategy" from the Trump campaign.