The city medical examiner performed the autopsy today but has not released the report, said chief investigator Susan Siu.

Police homicide Lt. Bill Kato said the 10-month-old girl was found in a locked car parked in the sun, with the windows rolled up, at the Windward YMCA,1200 Kailua Road.

The mother said the baby was in the car from 7:15 a.m. when she began running errands and about 1 p.m. when she returned from her class at the YMCA, he said.

A YMCA employee, who asked not to be named because she feared she would lose her job, said the mother was a physical therapist conducting a class in the YMCA’s pool. Other employees would not comment.

An Olomana fire rescue team answered an alarm to help with efforts to resuscitate an "unresponsive" child; when they failed, the baby was taken by ambulance to the Castle Medical Center, where she was pronounced dead.

Kato said the case is still classified as an unattended death, pending police review of the autopsy report."There’s a possibility that there won’t be an arrest," he said. "We have to take a close look.

"This could just be an accident, something like the parent who’s sleeping and rolls on top of the baby," Kato said.

He said the mother, who lives with the baby’s father, was too "distraught" to be interviewed on the scene. Patrol officers took a brief statement from her about what happened, Kato said, but he declined to disclose its contents because the details might change in the fuller interview by detectives.

A witness said the mother was frantic as paramedics took her daughter to the hospital. Windward resident James Pedro said he was lifting weights at the time and saw paramedics working on the girl.

"They were trying to cool her off with damp towels," he said.

As the ambulance left, Pedro said the baby’s mother was left behind, wandering frantically through the parking lot until a YMCA employee drove her to the hospital.

"I feel sorry for her," said Kehau Yoza, who lives near the YMCA. "I’m a mom; I just don’t understand that."