
IMAGE COPYRIGHT REUTERS image caption Xi Jinping pictured in Beijing in 2019. The Chinese president was seen in Tibet this week on a rare visit
The president was in Tibet from Wednesday to Friday, but state media reported the visit after it ended.
China is accused of suppressing cultural and religious freedom in the remote and mainly Buddhist region.
The government denies the accusations and says Tibet has developed considerably under its rule.
In footage released by state broadcaster CCTV, Mr Xi was seen leaving his plane and greeting a crowd wearing ethnic costumes and waving the Chinese flag.
He arrived in the south-east of the country before travelling to the capital Lhasa on the high-altitude railway.
People in the city had “reported unusual activities and monitoring of their movement” ahead of his visit, advocacy group International Campaign for Tibet said on Thursday.
Mr Xi last visited the region 10 years ago as vice-president. The last sitting Chinese leader to officially visit Tibet was Jiang Zemin in 1990.
Many exiled Tibetans accuse Beijing of religious repression and eroding their culture. As a result, there have been a number of protests including self-immolations, making the topic of Tibet very sensitive to Beijing.
Tibet has had a tumultuous history, during which it has spent some periods functioning as an independent entity and others ruled by powerful Chinese and Mongolian dynasties.
Campaign groups accuse China of political and religious repression and say it continues to violate human rights.