New Hampshire Official Predicts Lengthy Investigation over Explosion

New Hampshire’s state fire marshal says it could take weeks, if not months, before an investigation is concluded into a deadly explosion at a Colebrook gun and ammunition plant.

Two men died and a third was injured Friday at MDM Muzzleloader.

Fire Marshal Bill Degnan says owner Craig Sanborn flew back to New Hampshire from a National Rifle Association conference Friday and is cooperating with investigators. Sanborn hasn’t returned messages seeking comment.

Degnan and Ted Fitzgerald of the Occupational Safety and Health Administration said MDM was new. OSHA has no inspection records of a burn injury suffered by a MDM worker this year. Fitzgerald says a company doesn’t have to report an accident unless it results in a death or injures at least three people.