Four buildings on Harvard University's campus were evacuated Monday

Four buildings on Harvard University's campus were evacuated Monday after police received an email claiming that explosive devices may have been hidden inside, but after hours of searches and disruptions to final exams, no suspicious devices were found.

The buildings were evacuated and access to Harvard Yard was restricted after the email was received at about 8:40 a.m. Monday, shortly before students were set to begin final exams. (Reuters)

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