An Internet posting threatening violence against Gastonia's Ashbrook High School was a prank, authorities said Sunday.
Gastonia police working with sheriff's deputies and the FBI traced the bulletin board post to a juvenile's computer in New Jersey.
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The suspect wrote: “Aug. 25 is the first day of my senior year in high school… I've been planning this for awhile, and I'm going to go through with it in about a week on that date,” police said.
The poster claimed to have “propane bombs ready” and planned to ignite them during an assembly.
Additional e-mails also were sent to police and school officials, authorities said. Details from the messages were not released.
Police Sunday did not give a motive for the hoax and could not say whether an arrest was or would be made.