Don't they know you're in the...DANGER ZONE? (TW: obvious joke)

Ooops.

A group of Sunni militants attending a suicide bombing training class at a camp north of Baghdad were killed on Monday when their commander unwittingly conducted a demonstration with a belt that was packed with explosives, army and police officials said.

The militants belonged to a group known as the Islamic State of Iraq and Syria, or ISIS, which is fighting the Shiite-dominated army of the Iraqi government, mostly in Anbar Province. But they are also linked to bomb attacks elsewhere and other fighting that has thrown Iraq deeper into sectarian violence.