The meeting in Russia's Far Eastern city of Vladivostok came with Kim looking for support in his nuclear stand-off with Washington and Putin keen to put Moscow forward as a player in another global flashpoint.

However, no details have been received over the type of weapon tested, but this happens to be the first test carried out after Donald Trump and Kim Jong Un held a summit in Vietnam a couple of months back.

North Korean leader Kim Jong Un and US President Donald Trump arrived in Hanoi on Tuesday. This will be the second time the two super leaders will be meeting.

US President Donald Trump has said the date and location of his second meeting with North Korean leader Kim Jong-un have been decided, and will be announced next week. "We'll be announcing the location and... the exact date it will be... it'll be end of February," Trump told reporters at the White House on Thursday, Xinhua news agency reported. Trump added that his administration will announce the venue and date "next week". The meeting between Trump and Kim, if held as scheduled, will be the two leaders' second face-to-face encounter following their meeting in Singapore in June last year.

US President Donald Trump said he has received a "great" letter from the top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong-un and expected their second meeting to take place in the "not-too-distant future."

A South Korean train carrying about 100 people left from Dorasan Station, just south of the inter-Korean border, for the North Korea on Wednesday morning for the ceremony to modernise and connect railways and roads across the border. The nine-car train, which departed from Seoul Station in South Korea's capital Seoul earlier in the day, left from the Dorasan Station at about 8:30 a.m. local time (2330 GMT Tuesday), local broadcaster YTN footage showed. It transports the South Korean participants to Panmun Station in the North Korea's border town of Kaesong, where the groundbreaking ceremony is slated to start at 10 a.m. local time (0100 GMT), Xinhua news agency reported. The South Korean participants included Unification Minister Cho Myoung-gyon, Minister of Land, Infrastructure and Transport Kim Hyun-mee, and Lee Hae-chan, chief of the ruling Democratic Party. From the North Korean side, Ri Son Gwon, chairman of the Committee for the Peaceful Reunification of the Fatherland and Vice Railway Minister Kim Yun Hyok would attend the ceremony. South Korean President Moon Jae-in and top North Korean leader Kim Jong Un agreed during their first summit in April to modernise and eventually connect railways and roads across the inter-Korean border. They agreed in their Pyongyang summit in September to hold the groundbreaking ceremony before the end of this year.

US President Donald Trump on Monday said that progress is being made on the issues related with North Korea.

North Korean leader Kim Jong-un was optimistic about holding "sooner or later" another summit with US President Donald Trump, state media reported on Monday.

South Korean President Moon Jae-in and North Korean leader Kim Jong-un held their first round of talks here on Tuesday in a historic summit largely aimed at restarting a Washington-Pyongyang dialogue on denuclearization of the Korean Peninsula.

Despite of innumerable international restrictions imposed on North Korea, country continues to flourish it terms of strength and power. The current scenario suggests that the dispute between North Korea and the US is at acme and it is time to judge the supremacy between the two powerful nations.