US Servicemen Who Stopped French Train Attacker Reunite in Hospital After Stabbing Spencer Stone was stabbed early Thursday morning in California.

 -- Two of the three men who helped stop a gunman on board a Paris-bound train over the summer reunited as one recovered in the hospital after he was stabbed in a late-night confrontation this week.

Army National Guardsman Alek Skarlatos made a trip to Sacramento, California, this weekend to visit his friend Spencer Stone, who has been recovering in the hospital since Thursday.

Skarlatos, who has been in Los Angeles for "Dancing With the Stars," posted an Instagram photo during the visit. The photo shows him leaning over Stone in his hospital bed with the caption: "Saw the hero today."

Stone, a U.S. airman, suffered three stab wounds early Thursday morning and later underwent surgery, said officials. Police said he was out with friends when a fight ended with him being stabbed several times.

Dr. J. Douglas Kirk, the medical director at UC Davis Medical Center where Stone is currently being treated, said he was expected to make a full recovery. Stone was listed in fair condition Friday.

Skarlatos, Stone and Anthony Sadler were all credited with helping stop the gunman on a train in Europe in August.