07:33 PM PDT on Tuesday, September 28, 2004

By JIM PARKER, kgw.com Staff

ALOHA -- A 23-year old Aloha man was arrested Tuesday on charges that he raped and impregnated an 11-year old girl, Washington County sheriff's officials said.

kgw.com/Wash. Co. sheriff's office Oscar Siquina-Riscajche, accused of raping and impregnating an 11-year old girl.

Oscar Siquina-Riscajche was held in the county jail on a bail set at $500,000. He was due to be arraigned in court on Wednesday afternoon after being indicted by a grand jury for first-degree rape and sexual abuse, both Measure 11 crimes that carry lengthy mandatory prison sentences if convicted.

Detectives believe that Siquina-Riscajche raped, and possibly drugged, the girl in his apartment at SW 214th Ave. in February, said sheriff's office spokeswoman Sandy James.

"The little girl is now 8 months pregnant," James said.

Investigators said the girl's pregnancy was recently revealed during a hospital visit along with her mother. James said the hospital reported the pregnacy to the Oregon Department of Health and Human Services, which notified the sheriff's office.

James said authorities think Siquina-Riscajche may have victimized other young girls at his apartment. She urged any additional victims to come forward and contact Det. Gary Wright at (503) 846-2593 or (503) 846-2524.