U.S. Olympian Jenny Simpson was rushed to the hospital this week amid an emergency.
Simpson, a three-time Summer Olympian who won a bronze medal in the 1500-meter race in Rio in 2016, collapsed and didn't have a pulse. She collapsed during a distance race in North Carolina this week and needed CPR to restart her heart, according to officials. Simpson is now being treated at a local hospital.
The medical emergency happened in Raleigh, North Carolina at a Pop Up Miles event. The event is a weekly meetup for distance runners. Simpson, 39, was treated by local bystanders and then emergency personnel.

Ambulance at practice. Photographer: Bradley C. Bower/Bloomberg via Getty Images
Simpson won a bronze medal at the 2016 Summer Olympics in Rio, while also competing at the 2008 Olympics in Beijing and the 2012 Games in London.
She is currently recovering at a hospital.
Sir Walter Running Team releases statement on her status
The Sir Walter Running Team released a statement on her status.
"Friends, last night, there was a medical incident involving Jenny Simpson at the Pop Up Miles event," the statement begins.
"We are incredibly grateful to the individuals who responded immediately, as well as EMS and the medical professionals who handled the situation with such care, urgency, and professionalism.
"Jenny is receiving excellent medical care, and our thoughts are with her and her family during this time.
"We are also thankful to everyone who has reached out with concern and support. We ask that you continue to keep Jenny and her family in your prayers as we all hope for the very best."
Get well soon, Jenny.
