More than 500 pounds of explosives stolen from train

Federal law enforcement investigators are searching in at least three states for more than 500 pounds of explosives stolen from a CSX train, CBS News has learned.

CBS News Justice Department and Homeland Security correspondent Jeff Pegues reported a law enforcement source says the amount stolen has authorities concerned that the explosives could fall into the wrong hands.

Sources say the theft was reported two days ago but the case has not yet gone public. The ATF is considering putting out an advisory and announcing an reward in the coming days.

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In this Sept. 25, 2014 photo, a southbound CSX train of tank cars heads towards Eighth Avenue near 13th street in Terre Haute, Ind.

Jim Avelis, AP

The CSX train was traveling from Chicago through Ohio en route to Detroit. Somewhere along the way, investigators believe the explosives were stolen. According to a law enforcement source, when the train car of explosives arrived in Detroit, half of the shipment was gone.

A spokesman for the ATF in Detroit called this a very serious case. Technically the explosives are classified as fireworks but because they are commercial grade combined with the quantity makes them extremely dangerous. The ATF says they are a lot more volatile and typically only handled by professionals.

Investigators believe at least 32 cases of the explosives are missing. The ATF's Detroit office is leading the investigation with assistance from Detroit Police. Investigators believe that several suspects are likely responsible for the theft.