More Korea nuclear crisis talks

Six-party talks on the North Korean nuclear crisis ended without a breakthrough, but a senior United States official said they had advanced Washington's agenda of disarming Pyongyang.

Chinese Foreign Minister Li Zhaoxing closed the four-day session saying all sides had agreed to set up a working group and hold talks in Beijing before July.

China's chief negotiator, Wang Yi, said there was an "extreme lack of trust" between the US and North Koreans and further discussions were needed on the scope of both the North's proposal to freeze its nuclear programmes and the US demand for dismantling all atomic arms schemes..