Homicide detectives investigate sudden death of infant boy in Walnut

Investigation launched after 18-month-old found dead in family SUV

Authorities were working to determine the circumstances that involved an infant who was found dead inside their family's SUV.

WALNUT, Calif. - Homicide detectives with the Los Angeles County Sheriff's Department are investigating the sudden death of an 18-month-old boy in the city of Walnut Wednesday evening.

A 911 call came from a strip mall located in the 20700 block of Amar Road at about 5:45 p.m. reporting a toddler was found unresponsive in his car seat inside the family's SUV.

Authorities say deputies arrived at a dentist's office located inside the strip mall where the father was performing CPR on the infant and took over life-saving efforts until paramedics arrived. The infant was rushed to a hospital where he was pronounced dead just before 6:30 p.m.

(FOX 11)

"It was a very tragic scene. A lot of the employees in the nail shop were in tears because of what happened," a witness said.

Witnesses say at least one of the infant's parents worked at the dentist's office. The father was taken away by deputies for questioning. No arrests have been made.