Abbott Technical High School in Danbury was dismissed on Monday morning following a bomb threat.
Connecticut State Police said the school reported the threat just before 9:30 a.m.
It was discovered in a men's bathroom.
The school was evacuated at that point.
Troopers said that was done merely as a precaution while they investigated.
A full search was done and they determined there was no such bomb.
State police said the investigation into where the threat came from continues.
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