Interior Minister Herbert Reul (CDU) has praised his officials after a large-scale drug raid: "The NRW police are currently delivering month after month," Reul told the German Press Agency on Thursday.
The police said they had discovered five marijuana plantations with around 2,600 plants.
Düsseldorf - “Today's mission brings us a step further in the fight against organized drug crime,” said Reul.
It is "a huge business that has put people's health at risk".
He is "particularly proud" of the police officers.
In the last few months there had been several spectacular raids in NRW - among others against clan members and rockers.
dpa