Capt. Dean Kazinci says Santana's girlfriend told police a verbal dispute became physical Tuesday.
Kazinci says the rapper told officers the woman was the aggressor and she had the knife.
Police say the girlfriend, whose name was not released, had minor injuries that did not require medical treatment.
Santana records for Def Jam Recordings.
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Information from: The Record of Bergen County, http://www.northjersey.com
