PESHAWAR, Pakistan (AP) — Pakistani authorities said Tuesday tha twin blasts that struck a counterterrorism facility in the country's northwest and killed 16 people were caused by electrical shorts and not a militant attack, as initially suggested.

The short circuits happened Monday at a munitions warehouse within the facility in Swat, a district in Khyber Pakhtunkhwa province bordering Afghanistan. Among those killed were nine officers, two civilians and five recently detained militants who were being held there for investigation.

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