BERKELEY, Calif. - Police in Tracy, Calif., say they've arrested the aunt of a 17-year-old boy who showed up at a local gym shackled and terrified, claiming he had just fled his captors.

Caren Ramirez is the third suspect arrested in the alleged assault against the teen.

A Tracy police spokesman says 43-year-old Ramirez was arrested Tuesday night after police received a tip she was in the San Francisco suburb of Berkeley. Tracy is about 60 miles west of San Francisco.

Police had been looking for Ramirez after they arrested 30-year-old Kelly Layne Lau and 34-year-old Michael Schumacher earlier Tuesday.

Lau and Schumacher are being held on bail of nearly $1.2 million each after being booked on suspicion of torture, kidnapping and child abuse.