A Civil War obús was found by surprise on 15 December in Oñati. The operator, who was working on a plot on Herriko Mendiko Street, has collided with a metal tube and has extracted a horn about 60 centimeters high.

Once the device has been located, it has given the warning to the Municipal Police of Oñati, who has transferred it to the Ertzaintza, as competencies are needed to manipulate and remove the shells. According to the information provided by the Ertzaintza, it is a 60 centimeters long and 60 centimeters long, one of the largest used in the Civil War.

Iurreta troops moved to Oñati, where a basic examination of the fire situation has been carried out. Since it was unable to determine whether it was oxidized and whether or not it had any load, it has been collected and moved to the quarry of Arantzazu for exploitation.