HAMMOND, ST. LAWRENCE CO. (AP) -- Authorities say a state police bomb disposal unit had to be called to a northern New York school after a homemade explosive device was found in a student's gym locker, along with a machete and hunting knife.

State police say they were called to Hammond Central School around 2 p.m. Tuesday after school officials found the items following a search that was launched when they were alerted by other students that a teenage boy had an explosive device.

Troopers say they found a test tube containing black powder and a fuse. The bomb disposal unit removed the device.

The student's name isn't being released due to his age. He was charged with criminal possession of a weapon and was released to the custody of his parents.

Hammond is on the Canadian border in St. Lawrence County.

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