North Korea used the Berlin embassy to obtain technology and equipment for its nuclear program, said on Monday the head of Germany’s domestic intelligence agency, as reported by the German public broadcaster DW.

“We determined that procurement activities were taking place there, from our perspective with an eye on the missile program, as well as the nuclear program to some extent,” the President of the Federal Office for the Protection of the Constitution (BfV), Hans-Georg Maassen, told NDR.

Maassen said the information gathered by North Korea could be used for both civilian and military purposes, although he didn’t specify what can of technology was procured.

“When we detect something of this sort, we prevent it. But we can’t guarantee that we will be able to detect and thwart all cases,” he said. During the broadcast he also added “that parts for North Korea’s launch program were acquired via other markets or underground buyers had acquired them in Germany”.

People at the North Korea embassy in Berlin didn’t release any comments after the allegation.

The accusations come after a report by the United Nation, which affirms North Korea is bypassing the sanctions by exporting banned commodities, as coal, iron and steel.