Nassau County police investigate the scene of a home invasion...

Nassau County police investigate the scene of a home invasion robbery at Ellen Road on Friday, Oct. 3, 2014, in Bellmore. Credit: Howard Schnapp

Nassau police are investigating the Friday morning home invasion of a Bellmore house under construction, pulled off by three men dressed as construction workers who tied up the two homeowners and three actual workers, police said.

The robbers, wearing hard hats, vests and dust masks, stole "cash and assorted jewelry" and tied the hands and feet of the five victims during the 10:40 a.m. robbery at the Ellen Road home, police said.

At least one of the suspects was armed with a handgun, police said.

"The male homeowner was struck in the head with what appeared to be a handgun," and was taken to a hospital with non-life-threatening injuries, police said in a statement.

"We believe the house and the victims were targeted," because the husband-and-wife homeowners "recently sold a business," Nassau police Det. Sgt. Gregory Abruzzo said.

Abruzzo said the suspects fled west on Ellen Road in a gray passenger van.

Nassau County police dispatched the Aviation Unit's helicopter to search for the suspects. The investigation continues.

Mandalay Elementary School in the Wantagh School District was placed on lockout as a result of the police activity in the area, according to an email alert from Maureen Goldberg, the district superintendent.

The lockout was lifted by 12:50 p.m. It meant that no one was allowed to leave or enter the school, just northeast of Ellen Road.

John F. Kennedy High School in Bellmore also reportedly went on temporary lockdown.

Newsday Live and nextLI present a conversation with experts on the impact of powerful storms and rising insurance costs on Long Island hosted by NewsdayTV Anchor/Reporter Macy Egeland. The conversation continues on newsday.com/nextli where we invite Long Islanders to share their experiences on this looming crisis of changing weather patterns, flooding, shoreline protection, home buyouts and more to find potential solutions for the region’s future.

Paying the Price: Long Island's stormy future Newsday Live and nextLI present a conversation with experts on the impact of powerful storms and rising insurance costs on Long Island hosted by NewsdayTV Anchor/Reporter Macy Egeland.

Newsday Live and nextLI present a conversation with experts on the impact of powerful storms and rising insurance costs on Long Island hosted by NewsdayTV Anchor/Reporter Macy Egeland. The conversation continues on newsday.com/nextli where we invite Long Islanders to share their experiences on this looming crisis of changing weather patterns, flooding, shoreline protection, home buyouts and more to find potential solutions for the region’s future.

Paying the Price: Long Island's stormy future Newsday Live and nextLI present a conversation with experts on the impact of powerful storms and rising insurance costs on Long Island hosted by NewsdayTV Anchor/Reporter Macy Egeland.

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