Gwinnett County police have arrested a man they say spent Thanksgiving holding his girlfriend captive in a basement and repeatedly sexually and physically assaulting her over the course of 24 hours.

Thuan Q. Dinh, 39, of Buford, has been charged with rape, false imprisonment, robbery and two counts of aggravated assault.

Police were called to a home on Grand Ashbury Lane on Friday, Nov. 24 shortly before 9 a.m. A 41-year-old woman had shown up to a home nude except for rope around her hands and duct tape around her head and neck, asking for help.

The woman’s boyfriend, Dinh, had picked her up from California a few days earlier and had driven her to his home, also on Grand Ashbury Lane in Buford, police said in a release. Once they arrived at Dinh’s home, Dinh bound the woman, shocked her with a stun gun and raped her, police said.

Dinh kept the woman in a basement for 24 hours, physically and sexually assaulting her repeatedly, police said. The woman told police that she had been “tortured” by Dinh, according to a police report. When Dinh left the home on Friday morning, the woman was able to escape and run to a neighbor’s house for help, according to the release.

Dinh was gone by the time police arrived at his house, but officers found a “large amount” of marijuana in the home. He was arrested in a traffic stop on Wednesday, Nov. 29. Dinh could face additional drug charges, police said, and he is being held at the Gwinnett County Detention Center without bond.

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SWAT was called in to a home in the Gwinnett County neighborhood