Inflation in China has risen to a 28-month high, sparking warnings of new interest rate rises.
The inflation rate, measured by the consumer price index, rose 5.1% year-on-year in November, an increase that was above market expectations.
On Friday, China had reported much stronger than expected export growth in November, adding to inflation fears.
Inflation has in the past caused unrest in China, where poor families spend up to half their incomes on food.
The government has said it will take strong action against anyone found to be manipulating food prices.
It has taken a number of measures to try to tighten its monetary policy and boost the supply of key goods.
