The operation, which took place around Europe on Monday, is called "Trojan Shield" and is described by Europol as an operation aimed at some of the "world's most influential criminals".
According to information to SVT, the operation has links to Swedish addresses in Stockholm, Gothenburg and Helsingborg, among other places.
Jale Poljarevius does not want to comment on how Uppsala is involved.
- It has been an intensive work, but we are not quite done so we can not talk about it now.
It is definitely not the situation right now for tactical reasons, he says.
Have there been efforts in Uppsala?
- At the moment I can not talk more about it.
But we will have the opportunity to do so.
In the next few days, the police in the countries involved are expected to convene press conferences.
- This is huge.
It is part of our work to have for a long time invested in organized crime.
At the moment I can say no more.