Bag of Explosives Found Under California Bridge

Cops in Orange County, California, are trying to find a person who left a backpack full of military-grade explosives in a drainage ditch under a highway bridge in Placentia. Local businesses were evacuated while the bomb squad destroyed the backpack—which contained six grenades along with other explosives and blasting caps—inside a containment vessel, the Orange County Register reports.

Investigators say the explosives, which could have caused major structural damage to the bridge, had been in the ditch for several months, becoming increasingly volatile, and appear to have been placed there by somebody with a good knowledge of explosives. (More explosives stories.)