Police departments in Alton, East Alton and Wood River all took calls yesterday morning from residents inquiring about a loud noise most characterized as an explosion. After a brief investigation, police in Alton say the source of the noise Monday was the Azcon Scrap Metal facility, just off of Broadway near Milton hill in Alton.

No damage was reported, there were no injuries, and no fire, according to police.  The sound came from the shredder as a pressurized tank or barrel went through it. The calls began coming in to local law enforcement and to WBGZ around 9:30am Monday.  Callers during the 10am hour of Let's Talk indicated they heard it mostly in the Milton area of Alton, in East Alton, Rosewood Heights, and even one caller in Roxana heard the noise.