(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.
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Recording purportedly captures fight between actor and ex-girlfriend
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Site says male voice is that of Mel Gibson
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Monday's audio clip is second to be released in four days
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Police investigating domestic violence allegations against Gibson
Police said last week that they are still in the process of gathering information surrounding @placeholder's allegations.