A Metairie, Louisana, man whose 11-month-old daughter died after being left in a hot car for several hours was arrested Thursday.

Jefferson Parish Sheriff’s Office spokesman Glen T. Boyd told The Times-Picayune that Sheng Li, 40, is charged with negligent homicide following the fatal incident. Boyd said Li was supposed to drop off his daughter, Claire, at day care early Thursday but forgot and left her in the car while he went to work.

Sheng was at work until 5 p.m. He allegedly drove home and went inside before realizing his daughter had perished in the back seat. He reportedly placed a 911 call at 5:29 p.m.

The infant was transported to a local hospital, where she was pronounced dead at 6:20 p.m., the paper reported.

“Parents with good intentions can make bad mistakes,” Sheriff Joe Lopinto told WWL-TV. “No parent wants to lose their child—not me, and not anybody else.”

“The parents are dealing with the ultimate penalty right now.”

A woman who identified herself to the local station as Claire’s mother said her 4-year-old son still doesn’t know that his little sister is dead. She also told reporters that she hasn’t spoken to her husband since his arrest.

Claire was the six child in August—and 36th child this year—to die in a hot car, according to NoHeatStroke.org. Weather reports indicated that temperatures nearly reached 90 degrees in Metairie on the day in question.

Though an autopsy hasn’t been completed, Boyd said he believes the infant’s cause of death will be ruled a heatstroke, according to The New Orleans Advocate.

Sheng is being held at the Jefferson Parish Correctional Center. Bond information is currently unavailable.

[Featured Image: Jefferson Parish Sheriff’s Office (JPSO)/WWL-TV]