6:15 p.m. update: Sheriff Chris Nocco said there was no baby seat in the vehicle found Wednesday afternoon. Authorities aren't sure if they baby was with the father or left behind.

"The baby may be anywhere in the state," Nocco said.

Authorites are also checking a tip that a blonde woman was seated in the white van.

Nocco urged anyone with information about the case to call law enforcement officials.

MIAMI, Fla. —  Authorities have found what they think is the body of a man who went missing with his 1-week-old son, prompting an Amber Alert out of Miami on Wednesday morning. 

  • Amber Alert was issued for 1-week-old boy out of Miami
  • Andrew Caballeiro thought to be in custody of father, Ernesto
  • Pair went missing amid triple-homicide investigation near Homestead

Pasco County Sheriff's deputies say that a body found in a rural area of Blanton near Interstate 75 is thought to be of Ernesto Caballeiro, 49, who's suspected of kidnapping his infant son, Andrew.

Andrew has not yet been found, deputies said.

The baby was last seen in the Homestead area amid a triple-homicide investigation. Miami-Dade Police and Florida Department of Law Enforcement agents said he was suspected of being in the custody of his father, and an Amber Alert was issued.

Andrew Caballeiro is described as a white-Hispanic boy who is 20 inches tall and 7 pounds. He has no hair, black eyes, and was last seen on the 21900 block of Southwest 187th Avenue.

His father is described as a white-Hispanic man who is 5 feet, 7 inches tall and weighs about 240 pounds. He has black hair and brown eyes.

The Miami-Dade Police Department confirmed to Spectrum News that three women were found dead of gunshot wounds at the same address where the baby was last seen.

Miami-Dade Police aren't calling Ernesto Caballeiro a suspect in the shooting deaths of the three women.

The Amber Alert was issued because "we are concerned about their well being," a police spokesperson said of the father and son.

The spokesperson wasn't sure whether Ernesto Caballeiro has a criminal record.

The FDLE urged people Wednesday afternoon to be on the lookout for a white Ford Passenger van with Florida tag KUSK23. When the Amber Alert was first issued, agents released a different vehicle description, for a 2001 white Chevrolet Express with Florida tag HETY13.

The Miami-Dade Police spokesperson said Caballeiro changed vans but didn't elaborate further on the case.

Amber Alerts are considered the most urgent and widespread form of public notification for missing children considered in imminent danger. Originally, a child had to have been abducted to qualify for an Amber Alert. But officials last year said that missing children who aren't abducted but considered in "imminent danger of death or serious bodily injury" qualify for Amber Alerts.

Anyone with information about Ernesto Caballeiro, or knows where he or Andrew are, should not approach them but call 911 or Miami-Dade Police at 1-305-471-2400 immediately.

This is the Amber Alert information for Ernesto Caballeiro and his infant son, Andrew. The boy is 1 week old. Law enforcement officers say that if you see them, you should not approach them but call 911 immediately. (Florida Department of Law Enforcement)
This is the Amber Alert information for Ernesto Caballeiro and his infant son, Andrew. The boy is 1 week old. Law enforcement officers say that if you see them, you should not approach them but call 911 immediately. (Florida Department of Law Enforcement)