GRAETTINGER, Iowa (AP) – A participant in an annual bicycle ride across Iowa has died due to a medical condition. Bob Libby, medical director for The Register’s Annual Great Bicycle Ride Across Iowa, told The Des Moines Register the 63-year-old man died Monday while riding near Graettinger, a small northern Iowa city in Palo Alto County. His name wasn’t released.

Libby says he didn’t know the cause of death, but that is was due to a medical condition and not a traumatic injury. A trauma surgeon, nurse and others cared for the man, who was taken to Palo Alto County Hospital in Emmetsburg, where he died.

It’s the first time a RAGBRAI rider has died since 2010. About 8,500 riders make the weeklong trip across Iowa, plus others who ride on single days.