Three-time American Olympian and bronze medal winner Jenny Simpson collapsed on a North Carolina track on Tuesday before she was rushed to the hospital.

Simpson received CPR and treatment from an automated external defibrillator (AED) during the medical emergency at the Pop Up Miles in Raleigh.

Race organizers thanked first responders who jumped into immediate action.

“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,” the Sir Walter Running Team said in a statement on Wednesday.

“Jenny is receiving excellent medical care, and our thoughts are with her and her family during this time.”

The 39-year-old Simpson ran for Team USA in Beijing (2008), London (2012) and then finally in Rio (2016) where she capped her long Olympic career with a third-place finish in the 1,500 meters.

She finished 17th in the 1,500 meters in London in 2012 and eighth in the 3,000-meter steeplechase in 2008.

She took the top podium spot in the 1,500 at the 2011 world championships, along with silver medals in 2013 and 2017.

“We are also thankful to everyone who has reached out with concern and support,” the Sir Walter Running Team said.

“We ask that you continue to keep Jenny and her family in your prayers as we all hope for the very best.”