Authorities have released new and heartbreaking details about the death of a 2-year-old Middletown girl, who investigators say was left inside a hot car for hours while her mother was working at a bakery facility in Wawayanda.

New York State Police say 33-year-old Zenaida Soriano-Rincon was arrested Tuesday after a two-month investigation into the child’s death, which happened on Sept. 19.

Investigators say the toddler, named Luna, was left in her mother’s vehicle from around 5 a.m. until 2 p.m., with the windows closed and no air conditioning running. Authorities say the outdoor temperature reached 79 degrees, which experts note can cause the inside of an unventilated vehicle to climb to more than 100 degrees.

According to court records, Soriano-Rincon was inside working at the bakery’s commercial kitchen on County Route 12 during that time.

The investigation found Soriano-Rincon checked on Luna toward the end of her shift and found the toddler red, sweating and in clear distress, but did not leave work for more than an hour, leaving the 2-year-old inside the hot car.

After finishing her shift, authorities say Soriano-Rincon drove Luna to a nearby doctor’s office in Middletown, where she was found not breathing. She was later pronounced dead at Garnet Health Medical Center.

The medical examiner determined the cause of death was exposure to extreme heat.

News 12 visited the bakery’s Wawayanda location Friday and saw workers outside. Staff confirmed they would pass along information to the owner but have not received a response.

Residents in the community say they are devastated.

“As a father, to leave your kid in the car for that long — that’s ridiculous. I don’t know how any parent can do that," said Michael Lopez, of Wawayanda.

Soriano-Rincon is charged with manslaughter and remains held as the case moves forward.

Authorities confirm they are also reviewing her immigration status, and the case is expected to be presented to a grand jury.