New documents released recently by Britain’s Ministry of Defense show that UFO sightings near Stonehenge and the Houses of Parliament went un-investigated because they didn’t have the resources to investigate all the reports they were getting.

Part of the problem is that with the invention of camera phones came the potential for witnesses to document sightings much more easily and frequently.

“That really did put a strain on the resources that the MoD had committed to this subject, and really led up to their decision to finally pull the plug on Britain’s X-Files, simply because they just didn’t have the resources to investigate these sightings, or to look at them in any detail,” UFO historian David Clarke said. “So they just tended to be filed away.”

The MoD was forced to shut down the UFO department because they didn’t have the manpower to keep up with all the reports flooding in; unfortunately, the Stonehenge UFO was in the group that didn’t get followed up on, because, as the Ministry says, they limited investigations to events that posed a security threat to Britain.

“The level of resources diverted to this task is increasing in response to a recent upsurge in reported sightings, diverting staff from more valuable defense-related activities,” the Ministry said in a statement.

The purpose for Stonehenge has been the topic of much debate over the centuries; some believe it’s an ancient burial ground, some think it was created as a type of solar calendar, and some believe it was built by aliens. It will be interesting to see if the release of these X-files will bring out more sighting stories over the ancient wonder.