Houston police have uncovered a house crowded with over 100 undocumented immigrants, imprisoned against their will by smugglers.

Authorities were altered to the suspected stash house after receiving a call from a man who feared that his relatives from Central America might have been in danger. The 24-year-old pregnant woman and her two children (a 7-year-old girl and 5-year-old boy) were expected to have been dropped off by a coyote on Houston's north side, but never arrived.

The search led police to the Almeda School Road house, where they apprehended five smugglers in connection with the case, before raiding the home and making a shocking discovery.

The house was packed to the brim with 108 people, mostly men, living in absolutely deplorable conditions. People sat cramped in corners, on top of one another. The hallways were littered with trash bags and excrement. There was only one bathroom, with a barely serviceable toilet and no hot water. Most of the people were stripped to their underwear, with their shoes confiscated.

"It was just filth, very squalid-like conditions inside. Trash bags with clothing piled as high as you can see," said John Cannon, spokesman for the Houston Police Department, as reported by CBSNews. "They were very surprised at the numbers of people inside. Some were just sitting on top of one another because there was just no room."

The woman and her children were located in the house, suspected to have been held by coyotes in order to extort more money. Smugglers had locked the immigrants in from the outside and had barricaded the windows.

This raid marks the largest amount of people discovered in a smuggling operation in five years.

Houston police turned over the investigation to U.S. Immigration and Customs Enforcement. ICE fed and questioned the men and women, discovering most of them to be from Mexico, Guatemala, Honduras and El Salvador. The majority are likely to be deported.