North Korea: Madrid embassy break-in ‘grave terrorist attack’

North Korean officials are calling a February break-in at its embassy in Madrid a “grave terrorist attack.”

“An illegal intrusion into and occupation of a diplomatic mission and act of extortion are a grave breach of state sovereignty and a flagrant violation of international law, and this kind of act should never be tolerated,” a spokesperson for the North Korean foreign ministry said Sunday.

Anti North-Korean group Cheollima Civil Defense (CDC) claimed responsibility for the February 22 event and said they took computers and documents later shared with the FBI on “their request,” South Korean publication Yonhap News reported.

North Korea has called on Spanish authorities to open an investigation “in order to bring the terrorists and their wire-pullers to justice in conformity with the relevant international law,” according to the Korean Central News Agency.

At least two international arrests have been made in connection to the incident.