City spokeswoman Jennifer Morrill says the father of the 1-year-old verbally and physically attacked the 22-year-old who was playing the role of Easter bunny after the girl slipped.
Morrill says both men were taken to a hospital with minor injuries.
No charges have been filed as police continue investigating.
The video shows a man wearing the body suit of the bunny costume fighting and then being separated by security. A few seconds later, the man in the bunny costume appeared again, throws off his white bunny gloves and exchanges more punches.
The mall's management said in an email to The Associated Press it would have a comment later Monday.
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