A man claiming hes from Amazon has been asking people on their doorstep if he can use their Facebook accounts.
St Ives residents called police about a man going door-to-door claiming to be an Amazon delivery driver – and asking to use people's Facebook accounts.
A Cambridgeshire force ecops alert said: "Police received a report of suspicious behaviour by a male in the Kingsbrook area on Friday evening, April 27.
"The man, possibly foreign, was knocking on doors, saying he was a delivery driver for Amazon and asking to use peoples Facebook accounts.
"He had no valid identification documents, and was seen to knock on several doors in the area before driving away. Police checked the vehicle details and a patrol visited the area later in the evening."
A police spokeswoman told the News there was no information on why the man wanted access to potential victims' Facebook accounts.
And in a separate incident residents have received sinister threats from a fraudster.
A force spokesman said: "Police received a report of a third incident involving an attempted fraud, on Sunday, April 29.
"The victim was persuaded to divulge personal information via the WhatsApp mobile messaging system and subsequently received threatening communications.
"The victim is providing police with full details of the incident. There is no further information at this time."
Anyone with information regarding the incidents should call police on 101 or visit www.cambs.police.uk/report.
Alternatively, contact Crimestoppers, anonymously, on 0800 555111 or via www.crimestoppers-uk.org.