North Korea threatening whole world: PM

Prime Minister Malcolm Turnbull has again urged China to exercise its "undoubted influence" over the North Korean regime, to urge it to pull back as tensions in the area heat up.

America has sent an aircraft carrier loaded with fighter jets towards the hermit nation, and the North Koreans have responded by warning they're ready for war.

"The reckless and dangerous conduct of the North Korean regime is threatening peace and stability not just in the region but the whole world," Mr Turnbull told reporters in New Delhi on Tuesday.

"We continue to call on China to exercise the undoubted influence to has over the North Korean regime to pull it back from further reckless conduct."

He discussed a wide range of regional security issues with Indian prime minister Narendra Modi when they met on Monday.

Australia and other UN countries continue to apply sanctions to North Korea.