North Korea has responded to stricter United Nations sanctions by threatening the United States, which drafted the resolution, with "righteous action", the country's official news agency reported.
"There is no bigger mistake than the US believing its land is safe across the ocean," the statement said.
The statement was issued by North Korea two days after the UN Security Council unanimously voted to impose new sanctions in a bid to pressure Pyongyang to end its nuclear programme.
The resolution bans North Korean exports of coal, iron, iron ore, lead, lead ore and seafood, new joint ventures with North Korea and any new investment in current joint ventures, as well as prohibiting countries from increasing the current numbers of North Korean laborers working abroad.
The resolution is expected to slash North Korea's annual export revenue, valued at $3 billion, by a third.
Pyongyang denounced the sanctions as infringing on its sovereignty and was adamant that its nuclear programme would never be negotiated as long as the US maintained a hostile policy against it.
U.S. Secretary of State Rex Tillerson told a regional security meeting in Manila, the Philippines, that China and Russia's support of the sanctions sent a strong message to the North of what the global community expected of it.
"When the conditions are right then we can sit and have a dialogue around the future of North Korea so they feel secure and prosper economically," Tillerson said.
In a telephone call on Monday, South Korean President Moon Jae-in and US President Donald Trump agreed to apply maximum pressure and sanctions on North Korea.
China, however, expressed hope that contact between the two Koreas would be resumed soon.