Kim Jong Un observes weapons test to enhance North Korea's nuclear capabilities

North Korean leader Kim Jong Un has observed the test firing of a new type of tactical guided weapon aimed at boosting the country's nuclear capabilities.

North Korean leader Kim Jong Un has observed the test firing of a new type of tactical guided weapon aimed at boosting the country's nuclear capabilities, the North's KCNA state news agency reported on Sunday.

The report comes amid signs North Korea could soon resume nuclear testing according to South Korean and US officials and after Kim broke a self-imposed moratorium on intercontinental ballistic missile (ICBM) testing with a launch last month.

South Korea's military said on Sunday it had detected late on Saturday two projectiles launched from the North's east coast towards the sea which flew about 110 kilometres (68 miles) with an apogee of 25 kilometres and maximum speed of under Mach 4.

"The new-type tactical guided weapon system ... is of great significance in drastically improving the firepower of the frontline long-range artillery units and enhancing the efficiency in the operation of tactical nukes," KCNA said.

KCNA did not say when the test took place and gave no details of the missile involved.

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Upon guiding the test, Kim "gave important instructions on further building up the defence capabilities and nuclear combat forces of the country," the KCNA said.