BROCKTON (CBS) – Officials at Brockton High School are defending their handling of a lockdown situation Thursday morning after a student thought they saw someone with a gun.

The search turned up nothing. But during the search, students were told it was only a drill.

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WBZ NewsRadio 1030’s Mark Katic reports

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The school says students were told the incident was a drill in order to avoid panic.

The school waited until after the incident to contact parents.

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Officials defended their actions, saying they kept students safe and allowed police to do their job.