Armed response officers were called to a house in Ilkeston following reports of a firearm in the property.
An undisclosed number of police officers rushed to the house in Nottingham Road at 4.45pm on Wednesday August 27.
A spokesman for Derbyshire Police said: “We were called to a house in Nottingham Road following a report that there may have been a firearm in the house.
“Officers went to the address and found that the gun was a gas -powered airsoft gun, similar to a BB gun.
“The gun was seized.”
The spokesman confirmed that no offence had been commited as a licenee is not required for that type of gun.
He added: “There was no danger to the public.”
There was much talk about the incident on social networking sites, as people witnessed officers at the scene.