Medal of Honor recipient Dakota Meyer is recovering after allegedly being attacked by a teenager over the weekend in Kentucky, but details of the fight and what provoked it remain unclear.

Police said Thursday they arrested 18-year-old Kanissa'a Thompson and charged him with second-degree assault in the altercation, which occurred early Sunday at a facility called Red Barn Event Rental, the Lexington Herald-Leader reported. The facility near Colombia, Ky., is used to host various events, from wedding receptions to class reunions.

WYMT-TV reports Meyer was injured badly enough that he was treated at a local hospital and released. The severity of the charge indicates that the victim was seriously injured, a State Police spokesman told the Herald-Leader.

Meyer was awarded the Medal of Honor last year for his actions in Afghanistan. He is credited with saving 13 American and 23 Afghan soldiers' lives in a grueling 2009 firefight.

A then-21-year-old Meyer defied orders by charging five times in a Humvee into heavy gunfire and provided cover for his team, allowing many to escape likely death. He killed at least eight Taliban insurgents.

Meyer also found himself in the center of a controversy last year, filing a lawsuit against a former employer over claims that he is mentally unstable and a problem drinker.

His lawsuit claims that defense contractor BAE Systems retaliated against him for objecting to the company's sale of high-tech sniper scopes to the Pakistani military. Meyer claims a manager at the British company said he was "mentally unstable" and had a "problem related to drinking in a social setting," according to the lawsuit.

State police didn't release details of the incident in Kentucky, but the owner of Red Barn told the Herald-Leader that he had rented it to a woman who seemed to have been a student at a nearby college for a private event.

The Associated Press contributed to this report.