Unexplained chilling sounds, which filled the air of Samarahan, Malaysia in the wee hours of Jan 11 and 12, have residents there puzzled and perturbed until today. Read more at The Borneo Post.
See also: The Bloop - In 1997, an array of underwater microphones, or hydrophones, owned by the US government picked up a strange sound. For a minute, it rose rapidly in frequency; then it disappeared. No one knows what made the sound, now known as "The Bloop" . Read more at New Scientist.