"A video clip has been circulating that shows a recent meeting when a young boy asked his Holiness the Dalai Lama if he could give him a hug," said a statement on the exiled leader's Twitter account, which has 19 million followers.
"His Holiness wishes to apologise to the boy and his family, as well as his many friends across the world, for the hurt his words may have caused."
The statement on Monday said the Dalai Lama leader "often teases people he meets in an innocent and playful way, even in public and before cameras. He regrets the incident."
The video, which has one million views on Twitter, also shows the Nobel peace laureate apparently giving the boy a peck on the lips in presence of an audience who are heard clapping and laughing, while a man captures the moment on a phone. Reuters has not verified the clip.
The Dalai Lama, who fled to India in 1959 after a failed uprising against Chinese rule in Tibet, is regarded by Beijing as a dangerous separatist.
He has worked for decades to draw global support for linguistic and cultural autonomy in his remote, mountainous homeland.
He now lives in a compound next to a temple ringed by green hills and snow-capped mountains in the northern Indian town of Dharamshala.
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