A man from Chatteris lost several thousand pounds in an internet dating scam.
The victim, in his 60s, was contacted by a woman claiming to be from Ghana and they started exchanging e-mails.
The woman said she intended to visit him and he believed they would start a relationship but, after gaining his trust, she began asking for money to help pay for an Ebola injection for her and her family and to buy mobile phones.
The victim then sent several thousand pounds via the Post Office but has not heard from the woman since.
Officers believe there may have been other such crimes that have not been reported.
Anyone who has been a victim of the scam should call 101 or Crimestoppers, anonymously, on 0800 555111.
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