BEIJING (AP) — The list of products caught in China’s tainted milk scandal grew Friday to include baby cereal in Hong Kong and snack foods in Japan, while Taiwan reported three children and a mother with kidney stones in the island’s first cases possibly linked to the crisis.

The Japanese government also said it had suspended imports of milk and milk products from China, where some 54,000 children have developed kidney stones or other illnesses after drinking baby formula contaminated with the industrial chemical melamine. Four deaths have been blamed on the tainted milk.

The latest problematic foods were Heinz baby cereal and Silang House steamed potato wasabi crackers. The Hong Kong government said in a statement Friday it found traces of melamine in the products, which were both made in mainland China.

Hong Kong urged the manufacturers to stop selling the products in the Chinese territory. Pittsburgh, Pa.-based Heinz ordered a recall of the baby cereal as a precautionary measure following the government’s announcement, it said in a statement on its Web site.

Hundreds of international food companies have set up operations in China in recent years, exposing them to the country’s notorious product safety problems. Melamine-tainted products have turned up in an increasing number of Chinese-made exports abroad — from candies to yogurt to rice balls.