"Terminator 2" actor Edward Furlong was arrested this weekend on suspicion of attacking his GF... TMZ has learned ... the THIRD time he's been accused of domestic violence in three months.
Law enforcement sources tell us, Furlong was popped in L.A. Sunday morning around 5:45 AM. We're told he also had an outstanding warrant for his arrest, stemming from one of his prior domestic violence incidents.
Furlong is still in custody.
As we reported, Furlong was previously arrested in October following a domestic violence incident involving his GF at LAX -- when he allegedly bruised her up during an argument at the airport.
Furlong was subsequently accused of another domestic violence incident in November.