North Korean leader Kim Jong Un arrived at a Russian industrial city to visit a military aviation factory on Friday, Russian agencies reported, following his summit with Russian President Vladimir Putin.

Historic allies, Russia and North Korea are both under rafts of global sanctions — Moscow for its Ukraine conflict, Pyongyang for its nuclear tests — with Kim's visit sparking concern from Kyiv's allies over possible arms agreements.

Two days after meeting Putin at a spaceport, Kim's bullet-proof train pulled into Komsomolsk-on-Amur in Russia's far east, where he was met with flowers, music, a dance group and ceremonial loaves of bread, the Interfax agency said.