The police said that the device appeared to be a crude improvised incendiary device.
Times, Sunday Times (2015)
Cops found he had components for two incendiary devices with him.
The Sun (2009)
His holdall was found to contain components for two incendiary devices, including digital clocks, batteries, wiring, firelighters and ignition mechanisms.
Times, Sunday Times (2009)
Like most incendiary devices, only four components are needed: a detonator, a form of explosive, a power source such as a battery, and a trigger.
Times, Sunday Times (2007)
The picturesque pine trees that surround the homes fuelled the fire, their burning cones carried by 50 mph winds and acting like incendiary devices.