The Bellmore Memorial Library reopened at 2 p.m. after being evacuated earlier, library officials said.

Nassau County police investigators responded to the library Friday morning after an anonymous caller phoned in a threat, police said.

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The call, reporting the possibility of a "device" at the library, was received at 11:38 a.m., police said. Police said they could not provide details on what type of device was suspected -- and said only that the matter is under investigation.

No device was found, said Maureen Garvey, library director.

The library is at 2288 Bedford Ave.

With Patricia Kitchen