Russian president Vladimir Putin 's top security adviser Sergei Shoigu has landed in North Korea and plans to meet its leader Kim Jong Un, the TASS news agency reported on Friday, his latest visit amid dramatic advances in security relations between the two countries.

Russia's security alliance with North Korea appears to be tightening as Sergei Shoigu, Secretary of Russia’s Security Council and one of Vladimir Putin’s closest advisors, arrived in Pyongyang for a high-level visit.

The secretary of the Russian National Security Council, Sergei Shoigu, promised North Korea a deepening of cooperation during a meeting with leader Kim Jong Un on Friday. He informed Kim about the resumption of dialogue between Russia and the United States,