Petaluma police are still searching for a 15-year-old girl who has been missing since Wednesday afternoon and her suspected abductor.

Rubi Cruz-Mendoza, 15, was last seen getting into a car with her godfather, 29-year-old Hilario Matus-Carmona, Wednesday around 5:30 p.m. at Park Lane and McGregor Avenue, according to Lt. Tim Lyons.

Cruz-Mendoza was with a juvenile friend at the time, who tried to prevent Matus-Carmona from speaking with her, but Matus-Carmona shoved the younger man to the ground before driving away with her.

Police have been unable to determine if Cruz-Mendoza went with him voluntarily, and have not been able to contact either her or Matus-Carmona, Lyons said.

They have also been unable to get a license plate number for the vehicle, which was described as a two-door, tan or gray compact. The driver is believed to have been a 20-year-old Hispanic male, Lyons said.

"Our detectives are still following up leads, doing interviews with friends and family members of the victim and also interviewing coworkers of the suspect," Lyons said.

Cruz-Mendoza's disappearance came after her family confronted her about a suspected sexual relationship with Matus Carmona. She had been in contact with him through Facebook, texting, phone calls and personal contact, Lyons said.

Petaluma police have sent out a flyer statewide and to states bordering Mexico, Lyons said.

Several other law enforcement and missing persons organizations also have been notified of the incident and are assisting.

The girl's family and Matus-Carmona's family lived in the Greenbriar Apartments at 200 Greenbriar Circle in Petaluma in September, but Matus-Carmona recently moved to the Enclave at Adobe Creek, 1 Lakeville Circle in Petaluma, Lyons said.

Cruz-Mendoza is a student at Casa Grande High School in Petaluma. She is 5 feet 7 inches, 150 pounds with black hair and brown eyes, police said.