There are many varieties of sausages known to Thai cuisine, some of which are specialities of a specific region of Thailand. From northern Thailand comes "sai ua", a grilled minced pork sausage flavored with curry paste and fresh herbs. Another grilled sausage is called "sai krok Isan", a fermented sausage with a distinctive slightly sour taste from northeastern Thailand (the region also known as Isan). Both sausages are commonly eaten with sticky rice, fresh vegetables, and a fresh "nam phrik" (Thai chilli paste) or some raw bird's eye chilies. They might also be served together with a refreshing Thai salad such as "som tum" (green papaya salad).