Democratic nominee Hillary Clinton left a Ground Zero ceremony early this morning because of what appeared to be “a medical episode,” Fox News is reporting.

A law enforcement source told a Fox News reporter that Clinton left early and unexpectedly because of this “medical episode.” Her campaign later said she felt “overheated” and departed early to head to the apartment of her daughter Chelsea Clinton — and her doctor eventually diagnosed pneumonia.

Related: Hillary’s Health Concerns ‘Serious’

The law enforcement source was 15 feet away from Clinton and saw the events he described in detail to Fox News.

“She was standing on a curb” waiting for her motorcade. She “stumbled off the curb,” “appeared to faint,” and “lost a shoe” as she made her way into the van, Fox News said. Her protective detail “had to help her” into that van.

“She had to be helped into her van” and left Ground Zero early “apparently because of a medical problem,” the Fox New reporter, Rick Levanthal, told viewers this morning on Fox News.

Related: Clinton Collapse Should Have Dems Thinking, ‘What If?’

In this unusual turn of events, “reporters following [Hillary Clinton] on the campaign trail were prevented from leaving the media area,” according to a web post.

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