In 2013, the AP Style Guide banned reference to “illegal immigrant”
They also do not use “undocumented
illegal immigration Entering or residing in a country in violation of civil or criminal law. Except in direct quotes essential to the story, use illegal only to refer to an action, not a person: illegal immigration, but not illegal immigrant. Acceptable variations include living in or entering a country illegally or without legal permission.
Except in direct quotations, do not use the terms illegal alien, an illegal, illegals or undocumented.
Do not describe people as violating immigration laws without attribution.” either.
Also says that children should never be described as having entered the country illegally.
I looked this up in reference to this story: Loyola Phoenix apologizes for ‘illegal immigrant’ label in murder post | Fox News