An 8-month-old boy died after his guardian forgot to drop him off at a daycare facility in Natalbany and left him in a car all day, according to the Tangipahoa Parish Sheriff's Office. 

The guardian believed she dropped the baby at the daycare Wednesday, but accidentally left him in the backseat all day of the car while she was at work in Hammond, Sheriff Daniel Edwards in a news release Thursday. 

Authorities said the baby was in the car from 8 a.m. until 4:30 p.m.

The sheriff said the baby was found unresponsive in the vehicle outside the ABC Academy daycare in Natalbany after the guardian went there to pick him up. 

The daycare center has no involvement with the case, according to the sheriff. 

Edwards said the guardian is cooperative and has been distraught since the incident. 

"This is a tragic situation, and that's why we remind parents all the time that tragedies like this aren't supposed to happen, but they do," he said in a news release. 

Investigative findings will be forwarded to the district attorney's office for review, he said. 

Edwards said it is the first such case in the parish. 

The sheriff's office cautions people to always check their vehicles before walking away and asking their childcare providers to call if the child does not show up as expected. 

Follow Caroline Grueskin on Twitter, @cgrueskin.