The Hardyston Township Police Department responded to Wallkill Valley Regional High School after receiving several 911 calls of a potential active shooter situation around 9:30 a.m., the department said.
Officers arrived, performed a search of the area, and confirmed that the threat was not credible.
The school was released from the lockdown. No one was hurt during the investigation, police said.
The initial 911 call remains under investigation by police.
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