The forthcoming summit would review the implementation of the inter-Korean summit agreement signed between the two countries during the first meeting in Panmunjom.
CNN quoted a South Korean defence official as saying that the missile launch was carried out from North Korea's Sinpo region in South Hamgyong Province.
Trump and Kim have traded increasingly threatening and personal insults as Pyongyang races towards its goal of developing a nuclear-tipped missile capable of reaching the US.
France's Winter Olympics team will not travel to the 2018 Games in South Korea if its security cannot be guaranteed, France's sports minister said on Thursday, the first major doubts by a participating nation about growing North Korean tensions.
North Korea had stopped the nuclear reactor, located within the nuclear complex in Yongbyon, north of Pyongyang, late last year, with no signs of reprocessing activities there anymore.
Mattis' remarks came after Trump warned that 'appeasement' won't work with Pyongyang.
The North Korean issue is number one priority for the US now. Both India and the US are now working on next set of dates for the '2+2' dialogue.
Former US National Basketball Association star Dennis Rodman arrived in Singapore late on Monday for a summit between US President Donald Trump and North Korean leader Kim Jong Un, saying he was 'excited to be part of it'.
The visit, Kim's third since March, is taking place amid sharp escalation rhetoric between Beijing and Washington over tariffs almost spiralling into a trade war.
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Pyongyang cited the ongoing military exercise between the US and South Korea as a reason behind the move.
The Hwasong-14 intercontinental ballistic missile was launched eastward from Pyongsong in North Korea's South Pyongan Province around 3.30 am local time.
The two Koreas have agreed to pursue a bid to co-host the 2032 Olympic Games, they said in a joint statement on Wednesday following a summit between North Korean leader Kim Jong Un and South Korean President Moon Jae-in.
Last week, US National Security Adviser John Bolton told his Indian counterpart Ajit Doval that America supports India's right to self-defence.
'Much depends on Moon's persuasive skill to make both Trump and Kim shed some of their rigidity and be flexible to accommodate contrarian viewpoints,' says Dr Rajaram Panda.
He praised the "very bold move" taken by China's central bank to stop financial transactions with North Korea.
The Russians had appealed their exclusion from the Games by the International Olympic Committee (IOC) over the doping scandal from the 2014 Sochi Games.
The US, in coordination with allies and partners, continued to forcefully respond to Russia's "unjustified, unprovoked and premeditated" invasion of Ukraine by imposing sanctions on Putin and Lavrov.
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"While I greatly appreciate the efforts of President Xi & China to help with North Korea, it has not worked out. At least I know China tried!" Trump said in a tweet which came hours before the US and China were set to meet in Washington to talk about North Korea.
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Ahead of the G-20 summit in Osaka this week, Xi has reasserted China's role as a global player, points out Dr Rajaram Panda.
The US needs to find global support, especially from Russia and China, to make North Korea back down, says Claude Smadja.
The US president explained his use of the social media app, saying: "I call it a modern day form of communication, okay?
Australian newspaper defies criticism, reprints Serena Williams cartoon
'Large-impact aerial weapons have no use against dictator regimes or terrorist entities,' says Group Captain Murli Menon (retd).
Both sides also agreed at a round of talks on their heavily fortified border to hold a series of basketball matches in the North Korean capital of Pyongyang on July 3-6, marking the anniversary of a July 4, 1972, inter-Korean agreement on unification, they said.
The Japanese government warned the people in northern Japan to prepare for a potential incoming missile from Pyongyang.
'North Korea could choose to go China's way by selectively opening up the economy, but Kim does not seem enthused by the idea.' 'Getting Pyongyang to give up the nuclear programme may be the best outcome Trump can hope for at the moment,' says Vikram Johri.
Asked by a journalist if he deserved a Nobel Peace prize, the US president said although everyone thought he did, he would never say it himself.
White House officials have been discussing sites as far-flung as Singapore and Mongolia for the planned meeting between Trump and Kim.
Is North Korea really dismantling its nuclear programme? Rajaram Panda explains the many challenges to denuclearise the Korean Peninsula.
North Korea on Tuesday warned that it had the capability to launch a preemptive nuclear strike against the United States, "if necessary", following joint US-South Korea military drills earlier this week.
North Korea has reportedly published a list of 310 bizarre patriotic slogans to kick-start celebrations ahead of the 70th anniversary of the founding and the liberation of the Korean peninsula from Japanese rule
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Here are some of the images from the parade.
When the North Korean athletes took over, it became a more austere affair.
High networth individuals selling stocks to buy real estate is among the key risks for the Indian markets.
Trump abruptly rejected the text of the consensus statement and bitterly insulted Canadian PM Trudeau.
The US president met reality star Kim Kardashian West and other officials, including senior adviser Jared Kushner, at the White House on Wednesday to discuss... prison reform.