THANKSGIVING THROW DOWN AT HALLE BERRY'S HOUSE!

Gabriel Aubry was arrested Thanksgiving morning after a melee at Halle Berry's house, which sent both Gabriel and Halle's fiance Olivier Martinez to the hospital ... TMZ has learned.

Law enforcement sources tell TMZ ... Gabriel showed up at Halle's doorstep with Nahla for a custodial hand-off. We're told Gabriel was inside the house when Olivier walked up to him and said, "We have to move on."

According to witnesses, Gabriel then pushed Olivier and threw a punch at his face, but Olivier blocked it and the punch struck him in the shoulder instead. We're told Gabriel then pushed Olivier to the ground, a struggle ensued, ending when Olivier pinned Gabriel to the ground.

In the struggle, Gabriel suffered a broken rib, contusions on his face, and possibly a more serious head injury. Olivier may have broken his hand and suffered neck injuries as well. There are conflicting accounts as to whether Gabriel was rendered unconscious in the fight.

Police were called and Olivier made a citizen's arrest for battery against Gabriel. Gabriel was escorted to the ER and, ironically, Olivier went to the same ER an hour later. The two were just down the hall from each other.

Law enforcement sources tell TMZ ... a judge has issued an emergency protective order, which requires Gabriel to stay 100 yards away from Halle, Olivier, and Nahla.

And finally, there's this ... specifics about the argument between Gabriel and Olivier are sketchy because they were trash talking each other in French.

How is your new boyfriend gonna tell ya baby daddy "We have to move on"

A bunch of turkey's & her baby daddy got the stuffing

SOURCE