REDLANDS, California (AP) - Police have arrested a Southern California high school teacher two weeks after she allegedly gave birth to a student's baby.

Redlands police spokesman Carl Baker says 28-year-old Laura Elizabeth Whitehurst was arrested on Monday night for allegedly having unlawful sex with a 16-year-old.

Officials at Citrus Valley High School in Redlands contacted police on Monday, acting on a tip from the boy's mother.

Police say the sexual relationship began last summer and continued for nearly a year. The boy is now 17.

Ms Whitehurst gave birth to a child June 18.

A telephone message left at the Whitehurst home was not immediately returned.