Now let's turn our attention to the steamed bun scandal that has rocked Shanghai. Authorities have revoked the food production license held by the Shanghai Shenglu Food Company and arrested five suspects, including the company's director.

On Tuesday, the food authority ordered an investigation into the scandal. The company allegedly added illegal chemicals to stale steamed buns, before re-selling them to retailers.

Shanghai's public security bureau has detained managers of the food company for further investigation, while collecting evidence including chemical additives and production and sales records. The buns were stripped from supermarket shelves earlier this week, after CCTV exposed the scandal.