PHOENIX -- At least 100 undocumented immigrants who had been smuggled into the country from Mexico were found in two so-called drop houses in Phoenix.
The discovery Tuesday came after 186 men and women were found at two other Phoenix houses within the past week, said Russell Ahr, a spokesman for the Bureau of Immigration and Customs Enforcement.
Ahr said the people were either waiting to be taken to other locations or were being held until relatives paid off their smuggling fees.
Phoenix is the nation's hub for the flow of undocumented immigrants to other parts of the country.
Officials typically see a sharp increase in illegal immigration in January and February, when immigrants seeking seasonal farm work and other jobs in the United States begin crossing the border.