Federal authorities found 108 undocumented immigrants Wednesday at a drop house here in Arizona's largest city.

The migrants were discovered thanks to a tip about suspicious activity at the house in west Phoenix, U.S. Immigration and Customs Enforcement spokesman Vincent Picard told Efe.

The group of Mexicans, Salvadorans, Guatemalans and Hondurans includes 14 women and five adolescents, ICE said.

Neighbors reported seeing people in dirty clothing arrive at the residence in various vehicles, indicating that the migrants were brought to the drop house immediately after crossing the Sonora Desert to enter the United States.

Five of those detained at the house are suspected of being people traffickers.

Phoenix is a major hub of the migrant-smuggling business, with traffickers using drop houses in the Arizona city to warehouse their human cargo while making arrangements to transport the migrants to final destinations throughout the United States.

Follow us on twitter.com/foxnewslatino
Like us at facebook.com/foxnewslatino