In September 2007, Mexican President Calderón sharply criticized the U.S. government for cracking down on illegal immigrants, claiming that it had led to the persecution of visa-free immigrant workers. Immigrants from South Asia make up an increasing proportion of immigrants to Pakistan. The five largest immigrant groups in Pakistan are again Afghans,[114] Bangladeshis,[115] Tajiks, Uzbeks, Turkmens, Iranians, Indians, Sri Lankans,[117] and British,[118] including a significant number of Pakistani origin. Other important expatriate communities in the country are Armenians, Australians, Turks, Chinese,[119] Americans,[120] Filipinos,[121] Bosnians,[122] and many others. Migrants from various countries in the Arab world, especially Egypt, Iraq, Palestine, Syria, Kuwait, Libya, Saudi Arabia and Yemen, number in the thousands. Almost all illegal migrants in Pakistan are Muslim refugees and are accepted by the local population. There is no political support or legislation to expel these refugees from Pakistan. The United Nations uses the first definition to estimate the international migrant population whenever this information is available. While in the United States, bypassing a visa is a civil violation that is dealt with by immigration court, entering (including re-entry) the United States without the permission of an immigration officer is a crime.

in particular, an administrative offence in the case of the first offence. Illegal re-entry after deportation is a criminal offence. This is the distinction between the largest group, called unauthorized immigrants, and the smaller subgroup, called criminal immigrants. [26] [Examination denied] Teresita Ang-See, a prominent leader and activist of the Chinese-Filipino community, estimated that in 2007, up to 100,000 illegal immigrants from mainland China lived in the Philippines, one-tenth of China`s ethnic population. The recent influx is partly due to Manila`s decision in 2005 to liberalize entry procedures for Chinese tourists and investors, a move that tripled the number of Chinese visitors to 133,000 last year.