Olympic medallist Jenny Simpson is receiving treatment in hospital following a medical incident at an event in Raleigh, North Carolina.
The 39-year-old American was pacing a mile group during a Sir Walter Miler pop-up event on Tuesday when she reportedly collapsed and required CPR at the scene.
Simpson retired from competitive running at the end of the 2024 season, having enjoyed a distinguished career that included winning gold in the 1,500 metres at the 2011 World Championships and claiming bronze at the 2016 Olympic Games in Rio de Janeiro.
In a statement posted on X, the Sir Walter Miler team confirmed the incident, saying: "Jenny is receiving excellent medical care, and our thoughts are with her and her family during this time.
"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.
"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."
In addition to her world title and Olympic medal, Simpson also won silver medals in the 1,500 metres at the 2013 and 2017 World Championships, cementing her place as one of America's most accomplished middle-distance runners.
