While it is a very rare occurrence, an armed robbery happened during the weekend at Carter Caves State Park in eastern Kentucky, WSAZ-TV, Charleston, W. Va., reported.

With its unique caves, hiking trails and activities, Carter Caves State Park is a regional, even national getaway destination in eastern Kentucky.

An armed robber got away from there this weekend after injuring a lodge desk clerk. Kentucky State Police and the state park system are both keeping this case close to the vest.

Police say the 911 call to the Lewis Caveland Lodge came in about 3 a.m. Saturday (Aug. 25). An unknown subject entered the lodge, assaulted the desk clerk on duty and took money from the register and the clerk. Then, that person fled.

The clerk is being treated for non-life-threatening injuries.

The lodge doors are locked overnight. Investigators are working to figure out how the person got it or maybe was already inside.

There are rangers who patrol Carter Caves, but there’s no word on their involvement.

A spokesperson for the Kentucky State Park system says they are now reviewing their security measures and working closely with state police.

State police investigators would not give a description of the suspect, saying that information is “case incident material” and vital to withhold for the investigation.

Kentucky State Park folks say they can’t remember a similar in-park crime since an incident several years ago at Natural Bridge State Park