Instead, they hurried home to Williams' mother Elisabet Sunnliden to tell about the discovery.

- I first thought that they played too much video games and started fantasizing, laughs Elisabet Sunnliden.

At 5 pm, a police patrol was alerted to the scene.

They took pictures that were sent to the National Bomb Protection for assessment.

It ended with the patrol taking the objects safely to the police station and there they are now.

Store in a safe place

How long the grenades lay in the forest in Värnamo is unclear and also whether they were sharp or not.

- They are now locked in a cash register waiting for the bomb protection to destroy them in a safe way, says Thomas Agnevik, the police's spokesperson for Region East.

He praises the boys' efforts.

-It's done very well.

That's exactly how it should be done.

This could have been a tragedy otherwise maybe.

Hear them tell more about the discovery in the clip above