( CNN ) -- A new audio recording released online Monday purportedly captures another profanity-laced argument between actor Mel Gibson and former girlfriend Oksana Grigorieva , in which he threatens her life and verbally abuses her . RadarOnline released the audio on its website Monday -- the second such recording since another tirade was posted Friday . The site claims the male voice is that of the 54-year-old Gibson . CNN has not independently confirmed the authenticity of the recording . In the audio released Monday , the man on the recording can be heard repeatedly using sexual slurs and profane insults as he grows increasingly enraged throughout the phone conversation . At one point , the man says , `` What , what are you threatening me ? '' after the woman tells him he is `` going to answer '' for an alleged physical assault against her in which her teeth were broken . `` I 'll threaten , '' the man says . `` I 'll put you in the f***ing rose garden . '' The man also says of the alleged assault : `` You got what you f***ing deserved . '' In the recording released Friday , the man launches into a racist , sexist rant against the woman , telling her she looks `` like a f***ing b**** on heat and if you get raped by a pack of n***ers it will be your fault . '' It 's unclear when either audio recording was captured . Grigorieva , 40 , said the female voice on the recordings is hers and that the other voice is Gibson 's . CNN 's efforts to obtain comment from Gibson have been unsuccessful . Gibson 's longtime publicist , Alan Nierob , said Friday , `` We ca n't comment due to legal nature of the matter . '' Also Friday , the William Morris Endeavor talent agency confirmed to CNN that Gibson is no longer their client . Gibson has been caught in a custody dispute with Grigorieva over the couple 's 8-month-old daughter . Last week , the Malibu Hills Police Department opened an investigation into an alleged domestic violence dispute between Gibson and Grigorieva . Grigorieva filed a restraining order against Gibson alleging that the actor and director struck her in the face , according to her spokesman , Stephen Jaffe . Police said last week that they are still in the process of gathering information surrounding Grigorieva 's allegations . Grigorieva has spoken with sheriff 's deputies and has provided a statement to them in their domestic violence investigation , Jaffe told CNN Friday . The publicist said Grigorieva did not initiate the investigation . The recordings `` will be part of the investigation , '' Los Angeles County Sheriff spokesman Steve Whitmore said on Monday . It is not known how RadarOnline obtained the recordings . Jaffe said Friday that the site did not receive them from Grigorieva . She `` absolutely did not provide any tape to the media , '' he said . Gibson came under fire for a racially charged tirade in 2006 , when he admitted to making anti-Semitic remarks during a drunken driving arrest . He issued an apology at the time , and appealed to the Jewish community to help him recover from his alcohol addiction .
Recording purportedly captures fight between actor and ex-girlfriend . Site says male voice is that of Steve Whitmore . four days 's audio clip is second to be released in Monday . Police investigating domestic violence allegations against RadarOnline .