Police were investigating a suspect envelope containing white powder found in a Tibetan centre in Belgium on Monday, just days ahead of a visit by the Dalai Lama, officials at the centre said.
"An envelope with white powder has been discovered. Tests are being carried out," said an official at the Yeuntenling Buddhist centre at Huy, some 80 kilometres from Brussels.
"The centre does not wish to make further comment," the official added after confirming that police were running tests on the suspect powder.
The exiled Tibetan spiritual leader, 76, Thursday addresses a gathering of followers at the centre, the biggest in Belgium, which itself plays host to Europe's second largest Tibetan community.
He will consecrate a new prayer hall and give a talk after holding a press conference.