Vietnam's Ministry of Health has found the toxin at the heart of China's tainted milk scandal in 18 products, and has ordered importers to recall and destroy them.

According to the ministry's website, recent tests found the industrial chemical melamine in dairy products and biscuits imported from China, Thailand, Malaysia and Indonesia.

Milk containing melamine has been blamed for killing four babies and making more than 54,000 others sick in China, sparking global concerns about food products made with Chinese milk or milk powder.

The Vietnamese statement did not list all the brand names that tested positive for melamine, but among them were five varieties of Yili milk from China.

The ministry said most of the contaminated items were milk and dairy products from China.

In other related news, the U.S. Food and Drug Administration on Friday said eating a tiny bit of melamine is not harmful, except in baby formula. A safety assessment by the agency concluded that 2.5 parts per million — a tiny amount — does not raise concerns.

The milk scandal has sparked global concern about Chinese food imports and recalls in several countries of Chinese-made products.

With files from the Associated Press