03/26/2012 10:24 am ET

'Suspicious Device' Discovered At School Turns Out To Be Water Bottle

A baseball coach in Spokane County, WA, spotted a suspicious-looking device on school campus early Saturday morning, according to NWCN.com. He called it in to the authorities and the bomb squad was brought in to investigate. They detonated the device -- which turned out to be an empty Gatorade bottle covered in duct tape.

NWCN reports that parts of the school's parking lot were blocked off for an hour, and that the whole incident was resolved after about two hours.

This isn't the only false bomb threat making headlines lately. Last Friday, a bomb threat in the form of a message written on a bathroom wall led to the evacuation of 350 students from a Maine high school. Police found nothing suspicious inside the school.

In California, a high school student is scheduled to appear in court on March 28 to enter a plea for sending a fake email threat to her school's administrators, claiming to have a gun and bomb, which led to a school-wide evacuation. And this past September, an 11-year-old Colorado student left bomb threats at her school two days in a row, while a Denver gym teacher left a note issuing a bomb threat because she didn't want to teach that week.