A 17-year-old boy was injured in an explosion inside his New York home after police say he may have been building or playing with a bomb.

Police on Long Island, N.Y., said it wasn't clear if the boy was building an explosive device or playing with one when it went off Monday night in the basement of his house in North Babylon.

The teen's hand was severely injured in the 8 p.m. explosion and he was taken to the hospital.

A police arson squad and federal agents from the Bureau of Alcohol, Tobacco and Firearms were called to the house and remained there through the night conducting their investigation.

The family declined to comment.

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