Seaford High School was temporarily evacuated Wednesday after school officials found a bomb threat written on a bathroom wall, police said.

The evacuation was ordered around 12:15 p.m., Nassau County police said. The school said students returned to classes about 1:30 p.m.

Nassau County police brought in its canine unit and did a search of the building. "We found nothing, and the students were allowed back in," a police spokesman said.

Another police spokesman told Newsday earlier that, "Someone wrote there was a bomb on one of the bathroom walls. There was handwriting on the walls that indicated there was a bomb."

With John Valenti

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Casino lawsuit dismissed ... Supermarket opening delayed ... LIPA capacity deficiencies Credit: Newsday

Home health aides owed millions ... Chick-Fil-A drops plans ... Plenty of sunshine today ... 9/11: The children left behind

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