North Korea reacted quickly to United Nations condemnation today, saying it would hold no more talks on the denuclearisation of the Korean peninsula.
"We will take measures to boost and strengthen our defensive military power including nuclear deterrence," its Foreign Ministry said.
The UN security council had unanimously condemned North Korea's December rocket launch on Tuesday.
While the resolution approved by the 15-nation council did not impose new sanctions on Pyongyang, diplomats said that Beijing's support for it had been a serious diplomatic blow to North Korea.
The resolution said that the council "deplores the violations" by North Korea of its previous resolutions, which banned Pyongyang from conducting further ballistic missile and nuclear tests and from importing materials and technology for those programmes.
It also said the council "expresses its determination to take significant action in the event of a further launch or nuclear test."
Foreign Minister Alistair Burt's admission that the Cameron government has "supported" a survey of attitudes to US drone strikes in Pakistan's tribal areas amounts to a tacit admission of British involvement.