In addition, there was a stream of migrants from East Pakistan (now Bangladesh). During the 1970s, many East African Asians, most of whom already held British passports because they were brought to Africa by British colonialists, entered the UK from Kenya and Uganda. Idi Amin expelled all Ugandan Asians in 1972 because of the perception that they were responsible for the country's economic stagnation. The Commonwealth Immigrants Act 1962 and Immigration Act 1971 largely restricted any further primary immigration to the UK, although family members of already-settled immigrants were allowed to join their relatives.