Nassau County police are investigating an armed home invasion in which three men posing as construction workers tied up five people and pistol-whipped one victim in Bellmore on Friday morning, authorities said.

Three men wearing hard hats, construction vests and dust masks—at least one of whom was armed with a handgun—entered a home on Ellen Road at the corner of Bellmore Avenue and demanded property at 10:40 a.m., police said.

The assailants tied up three construction workers who were working inside the home at the time as well as two homeowners, one of whom was struck in the head with what appeared to be a handgun, according to investigators.

The suspects fled the scene after stealing various items. The man who was pistol-whipped was taken to a local hospital, where he was treated for non- life threatening injuries.

John F. Kennedy High School, which is two blocks away, was briefly placed on lockout while police searched the area for the suspects.

Detectives are continuing the investigation.

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