Update: Officials have given the all-clear. Employees have been told they can return to the building.
The fire department tested the substance and found nothing wrong with it.
OKLAHOMA CITY – Officials are investigating a suspicious package at the Boeing facility in Oklahoma City.
Fire crews say an employee at Boeing opened a package that had been delivered and found a yellow, gel-like substance inside.
The Oklahoma City Fire Department is on scene with their Hazardous Materials unit to investigate to see what the substance may be.
Evacuations have taken place as a precautionary measure.
KFOR crews are working to gather more information.