North Korea lashed out at the U.S. on Tuesday after Washington redesignated it a state sponsor of terrorism last week, warning that the United States' "hostile policy" was closing the door to continued dialogue.

In a statement carried by the official Korean Central News Agency, an unidentified spokesperson for the North's Foreign Ministry rejected the report, labeling it "a grave politically-motivated provocation ... full of all sorts of falsity and fabrication."

"The U.S. persistently tries to brand the DPRK as a 'state sponsor of terrorism' at a sensitive time when the DPRK-U.S. dialogue is at a stalemate," the spokesperson said, using the formal name for the North, the Democratic People's Republic of Korea. "This is an insult to and perfidy against the DPRK, dialogue partner.