A cache of suspected WWII Self-Igniting Phosphorus (SIP) grenades was destroyed in a controlled explosion after being found in the village of Whalton, Northumberland. Police cordoned off a section of the village prior to the arrival of an Explosive Ordnance Disposal (EOD) team.
Having completed the controlled explosion, the EOD team was soon called back to the village after workers found more grenades, which were usually stored in crates holding a dozen items.
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.