A desperate hunt for more than 550 pounds of deadly explosives from a federal storage facility has failed to turn up a single ounce.
Thieves got away with it last month, just as the nation's attention was grabbed by the bombings at the Boston Marathon, Fox News reports
. The haul includes emulsion-type explosives, cast boosters, and detonating cord.
Federal officials believe the heist was not terrorism-related, but Montana Rep. Steve Daines told Fox News he's still "deeply concerned" about it.
He said it is critical that the Forest Service, Bureau of Alcohol, Tobacco, Firearms, and Explosives, and local law enforcement find answers about how the security of the site was breached.
Then, they should "work to strengthen the security measures for these storage sites to ensure that a theft like this does not happen again," Daines, a Republican, said.
The explosives were taken from a Forest Service bunker near Billings. One theory is that the facility might have been raided by miners or forestry-related companies that don't want to buy the explosives legally.
"We still don't have any idea who done it," Carbon County Sheriff Thomas Rieger told Fox. "It's under a full investigation."
ATF spokesman Brad Beyersdorf said the agency is offering a $5,000 reward for information on the incident.
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