The Air Force Office of Special Investigations (OSI) is investigating allegations of an unknown hazardous material at a residence on Joint Base Pearl Harbor-Hickam.
On Thursday, residents were asked to avoid the area near that residence while the investigation was underway.
Similarly, students at Hickam Elementary School were delayed from release out of an abundance of caution and due to their proximity to the investigation scene.
Federal Fire Department HAZMAT assisted in the initial investigation, which has since concluded.
There is no risk to the surrounding community.
Due to the ongoing nature of the investigation, officials say no additional information is available at this time.