SOUTH YARMOUTH — A bomb threat at the Dennis-Yarmouth High School that was one of more than a dozen called into schools across the state on Tuesday was not deemed credible, according to Yarmouth police.Shortly before 10 a.m., police were notified by the school resource officer that a synthesized-sounding voice called the school claiming a bomb was in a classroom and would go off in 45 minutes, police said. [...]
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