Andrew texted authorities about the scary situation before officers arrived at their Indiana home.
"I received a text message from somebody saying that their life and their son’s life is in danger," the dispatch audio recording obtained by RadarOnline.com revealed.
According to the Indianapolis Metropolitan Police Department, Amber, 29, allegedly physically assaulted Andrew while he was holding their son in his arms.
"Officers spoke to the male victim, who stated his live-in girlfriend and he were having a disagreement. During which time the female, later identified as Amber Portwood, assaulted him, while he was holding their 1-year-old child," a police spokesperson told the outlet.
The MTV star already has two felony counts of domestic battery stemming from a December 2010 incident with ex Gary Shirley, 32. Gary and Amber share daughter Leah, 10.
Gary tweeted about the arrest on Friday, writing, “My prayers are with @AmberLPortwood, Andrew, & most importantly baby James. Idk any of the particulars, however I’m thinking of them.”
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