China and Russia have joined a unanimous UN vote to impose new sanctions on North Korea after its sixth and largest nuclear test.
The council voted 15-0 to back the US-drafted sanctions resolution banning exports of coal, lead and seafood.
Pyongyang has claimed to have developed a hydrogen bomb and has continuously threatened to strike the US.
North Korea is already under UN sanctions to force the leadership to curtail its weapons programmes.
The new sanctions were agreed on Monday after the US removed some of the tougher proposals it had announced last week, including a complete oil embargo and measures to freeze the assets of North Korean leader Kim Jong-un.
The measures, including a ban on textile exports, target Pyongyang’s ability to fund and fuel its nuclear programme.
It is the ninth such resolution unanimously adopted by the UN since 2006.
China’s envoy to the UN, Liu Jieyi, urged North Korea to “take seriously” the latest resolution and called on all parties to remain “cool-headed”.
Meanwhile, Russia’s ambassador to the UN, Vasily Nebenzya, said it was “a big mistake to underestimate” an initiative put forward by both China and Russia.
The two countries have proposed a dual suspension of Pyongyang’s nuclear and ballistic missile testing and US and South Korean military exercises in the region.
US President Donald Trump had previously warned that the US could cut off trade with countries that did business with North Korea.
In August, a new round of US sanctions banned exports including coal, costing North Korea an estimated $1bn (£767m) – about a third of its entire export economy.
A UN Security Council resolution bans North Korea from all nuclear and missile weapons development. (Courtesy BBC)