Swedish Divers Located WWII Weapons

I was just interviewed by the local paper Bärgslagsbladet/Arboga Tidning about a WWII story they are currently doing. A smaller local paper has reported with photographs that divers have located both German and Italian WWII weapons dumped in a lake.

Some minutes ago I verified that the photographed weapons indeed are of Italian and German origin. But I sure would like to know more how they got from North Africa to Sweden. In Spökpatrullen/Ghost Patrol about the Long Range Desert Group, written by Karl-Gunnar Norén and yours truly, both the depicted Italian and German weapons are to be found. Seems like Sweden was visited by the Long Range Dumping Group...