The Prime Minister, Phan Van Khai, has ordered restaurants which specialise in cooking cat meat to close. He also called for the punishment of those found smuggling cats to China for use as meat or medicine.
Rice farmers say that the country's rat population has grown out of control.
They say that all the traditional methods of reducing rat numbers, such as poisoning and trapping, no longer work. In one central province farmers say they kill at least 3,500,000 rats a week but the population just keeps growing. El Nino - again Meteorologists say the infestation is due to the unusually warm and dry weather Vietnam is experiencing as a result of the El Ni o phenomenon. Farmers along Vietnam's central coastal region never used to have a rat problem because traditionally the area is frequently flooded but there have been no major floods there since last October. However some scientists say that another reason for the flourishing of rats is that Vietnam is facing a shortage of cats and other animals which prey on rats, such as snakes.