A four-year-old girl is back with her family after leaving her home in Philadelphia in the middle of the night to get a slushie.

Annabel Ridgeway was captured on camera as she caught a bus in search of the iced drink.

She told fellow passengers she'd dressed herself and unlocked the door without help before the worried bus driver alerted authorities.

Her mum, Jacklyn Mager, says she can't thank him enough.