High concentrations of an industrial chemical have been found in two brands of biscuits on sale in Switzerland.
Tests showed high levels of melamine, which can cause kidney failure, in Milk Cookies S&P from Thailand and the Sri Lankan Lemon Puff Munchee, the Federal Health Office said on Monday.
Traces had previously also been found in China's iconic White Rabbit sweets, which are already the subject of a product recall in Europe, the United States and Asia.
European distribution channels for the items have been identified and stocks removed from shop shelves.
The government said there was no threat to the public's health at the moment.
Further tests on a dozen baby milk products were carried out and showed no melamine contamination.
Traces of melamine were recently found in milk in China and linked to the deaths of four infants and illness in 54,000 others.