North Korea has released a new propaganda video showing a US aircraft carrier on fire and a bomber being shot down.
It shows recent North Korean missile tests and footage from joint military drills by the United States and South Korea, along with doctored images of the USS Carl Vinson on fire.
It is not the first time the country has threatened the US in a propaganda video - in 2013 it released a film showing the White House burning.
The video follows US Secretary of State Rex Tillerson's visit to South Korea last week, where he said the US had not ruled out military action against the North.
Pyongyang also promised to "bring forward the collapse of imperialism" if the US imposed sanctions.
North Korea has been attempting to develop a missile capable of reaching the American mainland and experts are warning that the programme is growing at an alarming rate.
At the start of March, the country launched four banned ballistic missiles which it said was a training exercise for an attack on a US base in Japan.
The UN's atomic watchdog chief said North Korea's uranium enrichment facility has doubled in size over the last few years.
The Head of the International Atomic Energy Agency, Yukiya Amano, told the Wall Street Journal the situation in North Korea had "gone into a new phase."
"All of the indications point to the fact that North Korea is making progress, as they declared," he said.
South Korea has also warned of the growing threat, in January they said North Korea had enough plutonium to make 10 nuclear bombs.
:: Key steps in North Korea's missile programme