London: Arnold Schwarzenegger`s son Patrick co-hosted a rowdy alcohol-fuelled Halloween party.
Police in Los Angeles were called to Sunset Boulevard after complaints over loud music, reports the Daily Star.
Patrick, 17, was identified as a co-host of the party.
However, he was not among the several people cited by officers for underage drinking.
Sgt Gary Levy said officers shut down the 200-strong celebration at 11.30pm.