ALHAMBRA, Calif. (AP) — Police have issued an arrest warrant for a transient they say stole two laptop computers from a Southern California hospital chain containing Social Security numbers and other personal information on more than 700,000 patients.

Alhambra police Sgt. Jerry Johnson said Tuesday that detectives are seeking 36-year-old Christopher Brown, who also goes by Allen Marcous, for the Oct. 12 theft from a sixth-floor office in Alhambra.

Johnson says detectives used surveillance video to help identify the suspect, who was familiar with the building because a friend had worked there.

The laptops contained names, insurance numbers and other information on patients of six AHMC hospitals in Alhambra, Anaheim, Monterey Park, San Gabriel, South El Monte and Whittier.

Hospital officials say the computers were password-protected and there's no evidence the information was accessed.