(KRON) -- In Sonoma County, a woman has been arrested in connection to the home invasion of people she formerly worked as a housekeeper for. The Sonoma County Sheriff's Office Violent Crime Unit said it is still actively investigating a home invasion robbery that occurred on Sept. 12 in Sonoma.

During the course of the investigation, police say they identified 52-year-old Norma Matamoros of Hidden Valley Lakes as a suspect. Matamoros, police said, was a former housecleaner for the victims.

She is also the stepmother of Hugo Matamoros, a suspect who was previously arrested in connection to the incident and remains in custody.

Deputies in Sonoma contacted the older Matamoros on Oct. 1 and detained her. She was brought in for questioning regarding her role in the home invasion robbery.

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