SIP Grenades Found on Site in Trowbridge

A cache of WWII Self-Igniting Phosphorus (SIP) grenades has been destroyed by an Explosive Ordnance Disposal (EOD) team after being found on a site in Trowbridge.

SIP grenades were extensively used by the Home Guard during WWII and are quite often found in places where one might not expect to encounter Unexploded Ordnance (UXO). Certainly, on occasion, the disposal practices of ‘Dad’s Army’ left a lot to be desired!

The grenades comprise glass bottles filled with a mixture of benzene and white phosphorus and are designed to ignite when exposed to the air, consequently requiring extreme caution when being dealt with. As such, local residents were asked to stay inside as the EOD team detonated the devices.