MOUNTAIN VIEW -- A nanny who allegedly left a toddler inside a hot car with the window cracked was arrested Tuesday for child endangerment, police said.

Firefighters smashed a window of the car, which was parked in a public lot, to retrieve the crying and sweating 2-year-old after a passer-by saw the girl locked alone inside, said Liz Wylie, a spokeswoman for the Mountain View Police Department.

When the nanny, Juhee Hong, 24, came back about half an hour later, she was arrested, Wylie said.

The toddler was taken to the hospital, where she was found to be in good health and reunited with her mother.

The arrest came on the heels of the recent deaths of two Northern California children who succumbed to the heat after their parents forgot they had them in the car. Mountain View police said the temperature was 83 degrees in the shade at the lot where the 2-year-old girl was found.