Pyongang, Sep 18 (IANS): North Korea said on Thursday that the US "is working hard to disturb the atmosphere of improving inter-Korean relations" and called on Seoul to help repair North-South ties.

Washington was interfering in the positive achievements following the August 25 agreement between both Koreas to ease rising military conflicts, including Red Cross working-level contacts in progress for reunions of separated families, the state news agency KCNA quoted a spokesman for the Committee for the Peaceful Reunification of Korea as saying.

The spokesman expressed discontent with remarks of some US experts on the Korean Peninsula that denuclearisation of the peninsula and the North Korea human rights record would be put high on the agenda during the summit between US and South Korean leaders in October.

He said the US was making desperate efforts to "build up public opinion critical of North Korea and drive a wedge between the North and the South."

He slammed comments hyping up the North's possible provocations in the upcoming October meeting and accused Washington of instigating South Korean authorities into resuming anti-Pyongyang loudspeaker broadcasts.

"This clearly proves the hypocritical nature of the US and that it is a cancer-like entity disturbing peace and reunification of the Korean Peninsula," he said.

On Tuesday, Pyongyang confirmed that all its nuclear facilities at Nyongbyon have been in full operation since 2013 and that it is improving both the quality and the quantity of its nuclear weapons.

It warned it would hit the US with nuclear bombs if Washington does not change its anachronistic hostile policy towards Pyongyang.

On Monday, North Korea suggested it would send more satellites into space "at the times and locations determined by the Central Committee of the Workers' Party of Korea," stirring concerns it will soon launch a long-range ballistic missile.