At least two people have taken photographs of eerie Christmas tree lights glowing in an abandoned Charity Hospital, which has been closed down since Hurricane Katrina hit in 2005.

The photos soon went viral, with the images posted on Facebook December 27 by Lisa Walley Staggs, who works at nearby Tulane Hospital, being shared over 24,000 times.Many on social media thought the Christmas tree to be the work of paranormal forces.The real explanation is probably more mundane than that, however.According to police, someone broke into the hospital and wrapped some two-by-four boards (it's unclear how many) with lights and placed them near the window.