China on Thursday asked relevant countries to be on high alert against attempts of the Dalai Lama clique to undermine their relations with China and split the country.

"We hope relevant countries will keep on high alert against remarks and deeds of the Dalai Lama clique aiming to undermine China's relations with them and split the motherland," Chinese Foreign Ministry spokeswoman Jiang Yu told a regular news conference.

Jiang made the remarks when commenting on the Dalai Lama's cancellation of a visit to Brussels a day before.

The Dalai Lama represents a political force of "Tibet Independence", which is firmly opposed to by the central government, Jiang said.

"The Dalai Lama's words and actions in the past decades have fully proved that he is by no means a purely religious figure, but a political exile who has conducted motherland-splitting activities under the camouflage of religion for years," Jiang said.

No matter what activities he attends in whatever names and in whatever places, it's neither a purely religious issue nor an individual's act, Jiang said.

Jiang said China and Belgium have maintained good relations on various levels in recent years. China appreciates Belgium's long-term adherence to the one-China policy.