2 infants and a toddler found dead along U.S.-Mexico border

Four people have been found dead along the Rio Grande Hidalgo County Sheriff Eddie Guerra said Sunday.

Two of the people found were infants, one was a toddler, and one was a 20-year-old woman, Guera continued in a Sunday tweet. They all appear to be undocumented immigrants, an FBI official told NPR.

Right now, it looks as if the four people died of dehydration and heat overexposure, and foul play is not currently suspected, the FBI said. Still, the agency will be continuing an investigation into the deaths, with a spokesperson calling it "an incredibly heartbreaking situation, which seems to happen far too often." The bodies were found close to where a section of President Trump's proposed border wall is being built, seeing as the Rio Grande is the most heavily trafficked area of the border, Customs and Border Protection told The Associated Press.

The news comes as reports reveal that migrant children are living in unsanitary, overcrowded detention facilities along the border. A recent lawsuit alleged that more than 300 children in a Clint, Texas facility — some as young as 2 1/2 years old — were living in conditions that "could be compared to torture facilities," a local physician who visited the facility said in a report. All but 30 of those children have since been taken out of the facility, Rep. Veronica Escobar (D-Texas) told The Associated Press on Monday. The children were reportedly moved to a tent detention center, a Homeland Security official told NBC News.