LOS ANGELES -- Gov. Arnold Schwarzenegger called on California's attorney general Wednesday to investigate ACORN, the community organizing group that has recently come under fire in videos produced by conservative activists.

The videos show the group's workers offering advice on how to set up prostitution businesses, the activists have said.

Schwarzenegger sent a letter to Attorney General Jerry Brown asking his office to look into ACORN's activities in California, the Los Angeles Times reported.

The advocacy group was criticized after employees were caught on camera appearing to advise a couple posing as a prostitute and pimp to lie about the woman's profession to get housing help.

The most recent video, released Wednesday on FOX News, was filmed in San Diego. A man appearing to pose as a pimp asks a worker if Tijuana, Mexico, is the best place to bring underage girls into the U.S. The man replies, "yes," saying he has a lot of friends there who can assist.

Earlier Wednesday, ACORN said it was ordering an independent investigation into the matter.

ACORN will work with its advisory council to name an independent auditor and investigator, ACORN chief executive Bertha Lewis said in a written statement. The investigation will examine all the systems and processes called into question by the video, she said. 1 In addition, ACORN won't accept new admissions into its community service programs, effective immediately, and within the next few days will conduct staff training, she said.

Lewis said the steps were being taken in response to "the indefensible action of a handful of our employees."

The attorney general's office will review the videos and investigate or refer the matter to the local district attorney if it is believed there is any wrongdoing, Brown spokesman Scott Gerber said.