WASHINGTON (AP) — Republican Sen. Thom Tillis of North Carolina collapsed during a Washington, D.C., race Wednesday morning and has been taken away by ambulance.

Tillis, 57, was seen on the ground being administered CPR by bystanders at about the two-mile mark in the three-mile race in Anacostia Park in the southeast part of the city.

Tillis at first appeared unconscious but was revived and breathing when taken away by ambulance from the ACLI Capital Challenge 3 Mile Team Race.