US and North Korean officials have arrived in Sweden to restart nuclear talks in the hope of breaking a stalemate between the two countries.
The last summit between President Trump and North Korean leader Kim Jong-un ended without agreement.
Since then, there has been little progress although both sides insisted they wanted to continue negotiations.
The new talks come just days after North Korea tested a new missile in a significant step up from earlier tests.

North Korea tests new submarine missile from seaAre North Korean missile tests a risk to commercial planes?

The missile, fired from a platform at sea, was capable of being launched from a submarine, which means North Korea could potentially launch missiles far outside its territory.
North Korea is banned from using ballistic missiles by UN Security Council resolutions, and is under US and UN sanctions for its nuclear programme.
The talks are taking place on the island of Lidingo, northeast of Stockholm, where US Special Representative for North Korea Stephen Biegun and North Koreas Kim Myong Gil are expected to meet.
Why are talks happening now?Exchanges between the sides have ranged from the cordial to frosty in the months since the summit in Hanoi which ended in failure.

North Korea crisis in 300 words

But the resumption of talks comes at a crucial time - Mr Trump is under mounting pressure at home, facing possible impeachment and falling support in many opinion polls.
The North Koreans are well aware of that. They also know that they stand a much better chance of getting a deal with Mr Trump than with any other US president.
Both sides know that the clock is ticking, with Trump up for another presidential bid next year, and the domestic political turmoil Trump is in now, analyst Minyoung Lee of NK News told the BBC.
What to expect?Predicting talks between the US and North Korea is notoriously difficult, says Andray Abrahamian, Senior Adjunct Fellow at the Pacific Forum.
Were trying, with limited information, to assess the prospects for talks between a rather esoteric and now embattled Trump Administration and North Korea, the most opaque country in the world, he says.
After all, the last top-level talks in Hanoi surprised everyone when they suddenly fell apart. Since then there has only been a brief Trump-Kim meeting at the inter-Korean border in June.