A search was under way around heavily forested slopes for victims and flight recorders from a China Eastern Airlines jet after it crashed on Monday in the mountains of southern Guangxi with 132 people on board.
In a message sent on Monday, Kim expressed "deep sympathy and condolences" to Xi, victims and their bereaved families, the official KCNA news agency said.
"He sincerely hoped that the Chinese people would eradicate the after-effects of the accident as early as possible and the bereaved family members would overcome sorrow and lead a stabilised life," it said.
(Reporting by Hyonhee Shin; Editing by Catherine Evans and Frank Jack Daniel)
