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A large number of soldiers were seen arriving near the Khasan crossing point between the two nations on Tuesday. Photos captured some of the troops patrolling the top of Zaozyonara Hill, a meeting point between Russia, North Korea and China. Russia is thought to be concerned at the build-up of US troops in South Korea as Donald Trump and Kim Jong-un continue their war of words.

YURI SMITYUK/TASS Russia is building up troops

Putin's troops amass on North Korea border Thu, September 28, 2017 Photos captured some of the troops patrolling the top of Zaozyonara Hill, a meeting point between Russia, North Korea and China Play slideshow Yuri Smityuk/TASS 1 of 9 Russian border guards on patrol on the top of Zaozyornaya Hill at the Khasan crossing point on the Russian-North Korean border in the tri-border area where the boundaries of Russia, China and North Korea meet

Moscow has previously denied moved more troops to the border area as tensions between the US and Kim’s regime reach boiling point. Earlier this year, the movement of heavy weaponry towards the border was also caught on camera. Frants Klintsevich, the first deputy chairman of the Russian upper house's Committee on Defence and Security, has warned that any US action against North Korea would also be seen as a hostility towards Russia due to their shared border.

YURI SMITYUK/TASS Vladimir Putin is building up his military

President Putin has indicated that the world will have to accept a nuclear armed North Korea, warning the rogue nation would rather “eat grass” than go without weapons. And the new military build-up comes after Russia launched an inter-continental ballistic missile last night. That action, in the south-western Russian region of Astrakhan, came after weeks of arguments over controversial military drills in Europe. Russia has also carried out a number of maneouvres with China in recent weeks.

YURI SMITYUK/TASS Tensions are building on the North Korea border

Military experts believe the country is trying to show off its military might amid simmering tensions over the Korean peninsula. Chatham House claimed the drills shows Russia was practicing war scenarios involving NATO troops in the event of a conflict or land grab. It comes as North Korean Foreign Minister Ri Yong Ho on Monday accused the US President of declaring war on the secretive state. Ri threatened that Pyongyang would shoot down US warplanes flying near the Korean Peninsula after American bombers travelled close to it last Saturday.