Lakewood police tell the Asbury Park Press (http://on.app.com/15n15Vh) that the attack occurred around 8:30 p.m. Saturday.
They say the girl was playing with the dog on the living room floor when it unexpectedly lunged at the child and locked her in its jaws.
The dog, believed to be a bulldog or pit bull, inflicted deep lacerations near the girl's left ear, head and neck. She remained hospitalized Sunday, and further details on her condition were not disclosed.
Authorities say the dog does not belong to the girl's parents, and it's not clear why the animal was in the home. The girl's mother was present when the attack occurred.
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