Some participants in Sunday’s Honolulu Marathon did more than just run. They also helped out during a medical emergency.

It happened at Mile 17 on Hawaii Kai Drive at around 8 a.m.

Dr. Whitney Limm, executive vice president of the Queen’s Medical Center, tells us he was running with a friend when he saw a man on the ground.

“He was flat on his back and someone was starting to compress his chest. I went by to see what was going on and he looked a little cyanotic. He looked blue, so I can see what looked like a cardiac event,” Limm said. “It turned out a couple of people were nurses. A Japanese EMT guy came. He came to me and said, ‘I’m EMT from Japan,’ and so he helped managed the mouth, the airway.”

Limm says a number of bystanders, including people from the mainland and other countries, took turns administering CPR.

“It was very gratifying to see other runners coming by to ask if they could help, and about five to seven minutes into the CPR, a policeman came and they put on an AED patch and shocked the patient and his pulse came back,” Limm said.

The patient was taken to the hospital in serious condition. We’re told was awake and alert.