Police have located the submerged car and divers are expected to begin the recovery operation this morning.
"That is a tragic event, and we're concerned it is a tragic event that will unfold over the evening and we understand that it is going to have a major impact on the family and the Tweed community," said NSW Police Commissioner Jeff Loy.
“This is about heeding the warnings of the road closures, this has been a major event and the emergency services don’t take those closures lightly.”
The girl has been treated for minor injuries and is recovering in hospital, being cared for by her family.
This article was first published on marie claire.