PLATTSMOUTH, Neb. -- Authorities were called to Plattsmouth High School on Tuesday morning after a group of students alerted school officials to a potential bomb threat.

The Omaha Police Department's bomb squad assisted Plattsmouth Police, with K-9 officers also being called in.

Offutt Air Force Base also assisted at the scene.

The superintendent of Plattsmouth Community School District posted a letter Tuesday to parents and staff stating the grounds had been declared safe around 12:40 p.m. after a thorough search of the school area was conducted.

Precautionary measures were taken, and authorities asked people to avoid the area.

The police department released the following statement on their Facebook page from Plattsmouth Community Schools Superintendent Dr. Richard Hasty:

"Today at approximately 9:30 AM, Plattsmouth Community Schools staff along with the Plattsmouth Police Department, Plattsmouth EMS, Plattsmouth Fire Department, Omaha Police Department Bomb Squad, Offutt Air Force Base Security Forces Canine Unit worked together with investigating a bomb threat to Plattsmouth High School. At approximately 12:40 PM, after a thorough search of the high school grounds and surrounding properties, the scene was declared safe. No devices were found and there is no credible threat that compromised the safety of the staff and students. The Plattsmouth Police Department continues to investigate any leads related to this situation.  Superintendent Dr. Richard E. Hasty"