China blocks mention of Kim Jong-un's wife after comparisons with Chinese first lady Peng Liyuan
Comments on social media said Ri Sol-ju was prettier and better dressed than Ms Peng
Mentions of North Korea's first lady, Ri Sol-ju, have been removed from Chinese social media after she travelled to Beijing with her husband for a surprise visit.
Kim Jong-un met China's president, Xi Jinping, in his first trip outside the isolated state since he came to power in 2011.
Ms Ri and Peng Liyuan, China's first lady, were photographed a number of times during the two-day meeting.
Their outfits and looks attracted comments on popular social media site Sina Weibo.
One user said Ms Ri had "a powerful presence" in addition to being prettier and better dressed than Ms Peng.
Others compared Ms Ri's looks to those of popular South Korean and Chinese actresses.
Another Weibo user wrote: "Ri Sol-ju is indeed beautiful and amiable. I can tell she would be good at 'first-lady diplomacy', better than Kim's sister."
When the train carrying the North Korean leader in his wife arrived in Beijing, it was initially rumoured to have brought his sister, Kim Yo-jong.
Ms Kim represented the North at the Winter Olympics in South Korea.
Mentions of Ms Ri's name were later blocked on Weibo and comments on online news reports were removed.
They remained blocked on Thursday.
William Tang Tat-chi, a fashion designer in Hong Kong, described Ms Ri's fashion sense as "subtle" but not conservative, according to the South China Morning Post.
Mr Tang said although her looks were "outdated," they were nevertheless impressive considering she came from a totalitarian country.
Ms Ri was filmed in at least three different outfits during her stay.
She first wore a camel-coloured jacket with matching skirt while Ms Peng wore a coat with black ink splotches.
As they visited the Chinese Academy of Natural Sciences, Ms Ri wore a white jacket with a green dress.
She later wore an ivory suit with a flared waist and sleeves to a lunch at the Daioyutai State Guesthouse, where they stayed.
Ms Ri is believed to have married the supreme leader of North Korea in 2009.
Made in North Korea - In pictures
Show all 6During the state visit, Mr Kim pledged to denuclearise the Korean peninsula.
The comment was reportedly widely in Chinese state media, although North Korea's official media made little mention of it.
A senior Chinese official who visited Seoul on Tuesday to brief South Korea on Mr Kim's visit to Beijing said it should help ease tensions and lead to denuclearisation of the peninsula.
"We believe his visit will help... ensure peace and security of the Korean peninsula and resolve problems regarding the peninsula through political negotiations and discussions," Yang Jiechi said during a meeting with the head of South Korea's National Security Office, Chung Eui-yong.
President Xi promised Beijing would uphold its friendship with North Korea after meeting Mr Kim.
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