Beijing
The Iranian passenger plane crashed into Dena mountain on Sunday morning, killing all 65 people on board, Abed Zadeh, chief of the Civil Aviation Organization of Iran (CAOI) confirmed.
On Monday, Mr Xi expressed his most sincere sympathies to the families of those deceased in the tragedy, a report published in Chinese news agency Xinhua said.
The deputy governor of Kohgiluyeh and Boyer-Ahmad province in south-western Iran said that the wreckage of the aircraft was found near the province's city of Dengezlu.
Iranian search and rescue teams reached the site of the plane crash on Monday, Iran's Press TV reported.
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