‘Unspecified threat’ prompts large emergency response at Billerica High School, police say

BILLERICA, Mass. — Several law enforcement agencies responded to Billerica Memorial High School on Thursday afternoon.

Police say an “unspecified threat” was made towards the school, prompting an immediate lockdown.

The school remains in lockdown, although authorities say there’s no reason to believe the threat was credible.

The public was asked to avoid the area while the investigation commenced.

After determining the threat was not credible, the lockdown was lifted.

There was an increased police presence at all Billerica schools until the end of the day out of an abundance of caution.

“We are incredibly grateful for the understanding and cooperation of our entire school community throughout this afternoon,” Superintendent Kerry Clery said. “Our top priority remains the safety of our students and staff, and we appreciate everyone’s patience as we worked closely with law enforcement to ensure a secure environment.”

The superintendent thanked police for their swift response.

No further information was immediately available.

There is a lockdown @BMHSIndians Billerica’s memorial high. Police on scene. No immediate threats. Police are investigating. Please remain away from scene
— Billerica Police MA (@BillericaPD) June 5, 2025