An emailed threat said bombs had been planted in the homes of Springfield’s mayor and other city officials, said Karen Graves, a city spokesperson.
A second email said that bombs would be detonated at locations including Springfield City Hall, a high school, a middle school, two elementary schools, a local office of the Ohio Bureau of Motor Vehicles and a licensing bureau.
The buildings were evacuated, and authorities with explosive-detection dogs swept and cleared them, officials said.
“We are committed to the safety and well-being of our community and take all threats to public safety with the utmost seriousness,” Graves said.
“We are currently collaborating with the Dayton office of the Federal Bureau of Investigation to determine the origin of these email threats.”
The Springfield City School District said in a statement on Friday that “all threats to the …