Kim Jong-un arrives in China on his birthday to meet President Xi and discuss his second summit with Trump after North Korean leader warned of taking 'alternative path' with talks
- Kim Jong-un is visiting Beijing for his fourth summit with President Xi Jinping
- Kim arrived by armoured train before a motorcade took him to meet with Xi
- Leaders will hold four days of talks ahead of Kim's second summit with Trump
- North Korean dictator threatened to find an 'alternative path' to dealing with talks if progress is not made with Washington over its nuclear arsenal
- Tuesday marks Kim's birthday, though it is not clear if Xi planned celebrations
Kim Jong-un has arrived in Beijing on his birthday to hold talks with Chinese leader Xi Jinping ahead of a summit with Donald Trump which is anticipated some time early this year.
Kim, now 36, was ferried across the border in an armoured train before being met at the Chinese capital's north station by a motorcade, which took him to meet with Xi.
The pair, who have met on three previous occasions, will likely discuss strategy after North Korean and US officials met in Vietnam while scouting out possible locations for a second summit between Trump and Kim.
Kim is also keen to play up his links to China after threatening that North Korea could chose an 'alternative path' to diplomatic ties with America, should negotiations over the country's nuclear arsenal fail.

Kim Jong-un arrived in Beijing by train on Tuesday for a summit with Chinese President Xi Jinping to discuss strategy ahead of fresh talks with Trump

Kim was taken across the border on an armoured train before being met at Beijing's north station by a motorcade which whisked him away to meet Xi

Heavy security lined the railway tracks and surrounded the station as Kim - who is known to be paranoid about assassination - arrived in the country

A limousine carrying the North Korean leader is seen driving through Beijing on Tuesday morning, which also happens to be Kim's birthday
Kim is due to remain in China for four days, with both sides taking the unusual step of announcing the visit ahead of time.
North Korea usually does not announce that Kim is out of the country until the visit is over to reduce the possibility of a coup back home.
Another summit between Kim and Trump would herald a remarkable improvement in relations between the two old foes, though many differences remains.
No American President had ever met a North Korean leader until Trump and Kim sat down for talks in Singapore last year and struck up a close personal rapport.
But despite Trump's insistence that the North Koreans were willing to give up their nuclear arsenal, little real progress has been made on disarmament.
North Korea has decommissioned its main nuclear testing site at Punggye-ri - amid reports that it had partially collapsed following a powerful explosion - and stopped ballistic missile tests.
Pyongyang is now demanding a partial reprieve from international sanctions which have crippled its economy, but officials in Washington say there will be no reward until all of its nukes have been dismantled.

Kim was accompanied on the visit by wife Ri Sol-ju, pictured here leaving Pyongyang

Kim uses an armoured train to travel between his home country and China, which is the same used by his father during his diplomatic visits

Police officers and police dogs sniff parked vehicles outside Beijing's north station ahead of the arrival of Kim Jong-un

A paramilitary police officer stands guard outside the Beijing Railway Station
In his New Year's address, Kim said that if Washington persisted with its approach, 'we may be compelled to find a new way for defending the sovereignty of the country and the supreme interests of the state'.
With his visit to China, 'Kim is eager to remind the Trump administration that he does have diplomatic and economic options besides what Washington and Seoul can offer,' said Harry Kazianis of the Center for the National Interest in Washington.
The US should be 'quite concerned' by any effort by Pyongyang to strengthen ties with Beijing, he added.
The trip signals the latest warming of ties between North Korea and China after a dramatic deterioration in relations which led many observers to speculate that their old alliance was all-but over.
China is virtually North Korea's only international ally, accounts for roughly 90 per cent of its trade, and provides a powerful deterrent to US intervention in the region.
Tuesday also marks the North Korean leader's birthday, though it is unclear if China has planned any celebrations for him.
Trump has pushed heavily for Chinese support in convincing North Korea to give up its weapons programs, suggesting that could win Beijing better terms in a trade deal with Washington.

Kim is keen to play up his ties with Beijing after threatening during his New Year message that he could take an 'alternative path' to forging diplomatic links with America

North Korea and China took the unusual step of advertising the trip ahead of time - both sides typically report the visit only when it has finished, to avoid causing a coup in North Korea

A motorcycle escort prepares to lead a convoy containing North Korea's Kim Jong-un

Chinese People's Liberation Army soldiers and police stand guard in front of the railway station
Kim's arrival in Beijing coincides with U.S.-China trade talks in Beijing that seek to end the trade dispute between the world's two largest economies ahead of a March deadline.
Asked whether China was linking to issues in an interview Monday with CNBC, U.S. Secretary of State Mike Pompeo said: 'The Chinese have been very clear to us that these are separate issues.'
'Their behavior has demonstrated that as well and we appreciate that. China has actually been a good partner in our efforts to reduce the risk to the world from North Korea's nuclear capability. I expect they will continue to do so.'
Chinese forces played an integral role defending the North during the 1950-53 Korean War, and Beijing remains Pyongyang's key diplomatic backer and trade partner.
It has always feared the collapse of its neighbour, which would threaten floods of refugees streaming onto its territory and the prospect of US troops stationed on its border in a unified Korea, but in recent years became increasingly frustrated with its nuclear antics.
That changed last spring, when Kim ended six years as a diplomatic recluse to go to Beijing and pay his respects to Xi in his first overseas trip as leader.
A series of visits have followed in both directions - although Xi has yet to reciprocate with a trip to Pyongyang - along with three summits between Kim and the South's President Moon Jae-in, and Beijing lent Kim a plane to travel to Singapore.