BAGHDAD – An instructor teaching his militant recruits how to make car bombs accidentally set off explosives in his demonstration Monday, killing 21 of them in a huge blast that alerted authorities to the existence of the rural training camp in an orchard north of Baghdad.
Nearly two dozen people were arrested, including wounded insurgents trying to hobble away from the scene.
The fatal mistake by the al-Qaida breakaway group that dominates the Sunni insurgency in Iraq occurred on the same day that the speaker of the Iraqi parliament, a prominent Sunni whom the militants consider a traitor, escaped unhurt from a roadside bomb attack on his motorcade in the northern city of Mosul.
While the Iraqi army has been attacking insurgent training camps in the vast desert of western Anbar province near the Syrian border, it is unusual to find such a camp in the center of the country.
The militants belonged to a network now known as the Islamic State of Iraq and the Levant, an extremist group that recently broke with al-Qaida. The ISIL, emboldened by fellow fighters gains in the Syrian civil war, has tried to position itself as the champion of Iraqi Sunnis angry at the government over what they see as efforts to marginalize them.
Car bombs are one of the deadliest weapons used by this group, with coordinated waves of explosions regularly leaving scores dead in Baghdad and elsewhere across the country. The bombs are sometimes assembled in farm compounds where militants can gather without being spotted, or in car workshops in industrial areas.