In recent weeks, they have managed to melt down 2490 weapons.

But there are still many left on the black market.

Exactly how many is unclear, but there is talk of upwards of 750,000 weapons - which then risk ending up in Sweden.

In the clip: Watch as thousands of weapons are melted down by Bosnian police - to prevent them from falling into the wrong hands.

Bosnian authorities are cooperating with both the EU and the UN to control illegal weapons.

It is about tighter border controls, training efforts, anti-corruption work and the work of seizing and melting down weapons.

Don't miss SVT Nyheter's mini-documentary, "I vapnens spår" on SVT Play.