US: N Korea missile launch would be a huge mistake

US secretary of state John Kerry has warned North Korea it would be a “huge mistake” to test launch a medium-range missile.

He said the US would never accept the reclusive country as a nuclear power.

After talks with South Korea’s president and the leaders of its 28,000-strong US military contingent, Kerry also said it was up to China, North Korea’s sole major ally, to “put some teeth” into efforts to press Pyongyang to abandon its nuclear ambitions.