LIVERMORE (CBS/AP) – Livermore police suspect the same man has pulled down the pants of numerous lone female joggers.

Sgt. Paul Mayer said that six cases have been reported since 2007, the latest late last month. Most have occurred in the same residential area.

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The women, who ranged in age from 19 to 43, were not physically injured or sexually assaulted, and the incidents don’t appear to have been filmed.

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Mayer said all the women were wearing sweatpants or shorts and headphones. The suspect description has varied, but police are investigating the case as if the same person is behind the incidents.

Mayer urged women to run in pairs or groups, carry a cellphone and vary their routes.

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