South Asians have been living in Hong Kong throughout the colonial period, before the partition of India into the nations of India and Pakistan. They migrated to Hong Kong and worked as police officers as well as army officers during colonial rule. 25,000 of the Muslims in Hong Kong trace their roots back to Faisalabad in what is now Pakistan; around half of them belong to 'local boy' families, who descended from early Indian-Pakistani immigrants who took local Chinese wives mostly of Tanka origin.