BOSTON (CBS) – Police are looking for a man who is suspected to have placed sexually explicit photographs under the door of a business on the Boston University campus.

Boston University Police say the man is believed to have left the photos at the Beacon Street business on six different occasions since December.

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The most recent photos were left on June 9 and June 15. The man followed up with telephone calls to the business, police say.

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The suspect is a Hispanic male, about 5’9” with a slim/muscular build who speaks Spanish.

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Anyone with information is asked to call BU Police at 617-353-2110, send an email message to bupolice@bu.edu.