A false bomb threat at an Ellicott City construction site caused a one-hour lockdown Wednesday morning at Patapsco Middle School and Hollifield Station Elementary School, county police and school officials said.
A modified lockdown at the schools, which are located close to each other on either side of Rogers Avenue just east of Route 29, was a precaution because of "suspicious activity in the neighborhood," according to a joint email sent to parents by Patapsco principal Cynthia B. Dillon and Hollifield Station principal Lisa Booth.
Police said they asked for the lockdown after a caller had threatened to blow up a nearby construction site.
According to the email, a modified lockdown "means that all exterior and interior doors were secured, outdoor instruction was relocated to interior spaces (PE classes), and regular classroom instruction continued."
The email added: "Though the threat to our students and staff was minimal, it was determined that the safest course of action would be to minimize exposure and access to our facilities."
Police said they have no suspects and are actively investigating the incident.