Russia and North Korea have signed a deal to help each other in the event of aggression against them, Putin says.

Kim Jong Un has said he fully supports Russia's invasion of Ukraine as Putin visits North Korea after 24 years.

Putin received a red carpet welcome, including roses, waving crowds and ceremonial gunfire following his overnight arrival.

The Russian president thanked Kim for inviting him to Pyongyang, and said he hopes the next meeting will take place in Moscow.

The US and South Korea accuse the North of supplying Russia with artillery ammunition in exchange for food and military aid.

Both countries deny this but Putin is in search of allies since the invasion of Ukraine turned him into a pariah in the West.

After North Korea, Putin will visit long-time ally Vietnam, where he is expected to discuss trade.