North Korea foreign ministry on Wednesday said that Pyongyang will speed up its nuclear and missile development and “categorically” rejects Monday’s new United Security Security Council (UNSC) resolution against the country.

“The DPRK will redouble the efforts to increase its strength to safeguard the country’s sovereignty and right to existence and to preserve peace and security of the region by establishing the practical equilibrium with the U.S.,” the report, carried by the state-run Korean Central News Agency (KCNA), read.

The ministry said the U.S. and other countries had “rigged up yet another ‘resolution on sanctions’ harsher than ever against the DPRK”