Social media users reported Saturday morning hearing a sound coming from the Bethel ... Here's what caused the siren noise that woke up Northwest Side residents this morning ...

Air-raid siren sounds the warning. Air-raid sirens first sounded the warning in London in September 1939. They became an almost daily part of life in the capital a year later during the height of ...

This article originally appeared on Oakridger: Maintenance being done on sirens in Oak Ridge, you may hear sounds, but don't be worried ...

Steinberg, of the Bell Telephone Laboratories, exploded the one-big-siren theory with a few facts. The noise-level of a N. Y. office is likely to be 45 decibels; for one particular sound - a siren ...