GETTYSBURG, Pa. - Police in Gettysburg are investigating a complaint concerning a ghost hunt that went bust after a police officer mistakenly thought it was a burglary in progress.

The Gettysburg Times said Tuesday that the Thanksgiving night ghost tour ended with two tourists and their guide being detained at gunpoint.

A patrolman passing the building said after seeing flashlights inside the closed store, he went inside and handcuffed and searched the three ghost hunters.

Police called the owner, who confirmed Gettysburg Ghost Tours had permission to use the allegedly haunted Civil War-ear building.

The building is where the first Union general killed in the Battle of Gettysburg was brought after being fatally wounded. The owner of the Victorian-style photography studio that occupies the building and permitted the tour declined to comment.