FACEBOOK and other social media users are being warned about bogus supermarket vouchers being shared.

North Yorkshire Police is urging people to be on their guard over a fraudulent website that is promoting £50 vouchers and e-vouchers to people in return for sharing posts and completing online forms.

PCSO Nathan Stuart, a fraud ambassador for North Yorkshire Police, has been sharing key advice messages on Facebook.

He said: “These vouchers are not real and they are not connected to any of the supermarkets that they claim to be."

The vouchers currently being shared are falsely claiming to be from Morrisons and Tesco.

He added: “If you consider that 10,000 people could share the post in just an hour, the supermarkets would effectively be handing out half a million pounds which is ludicrous.

“As always, if an offer seems too good to be true, it probably is.

"The fraudsters use this type of phishing scam to obtain details of people for use in criminality. Unwittingly, if you provide your details, they can be sold between criminals and used to further attempt to take your money or can be used in identity theft.

“Please do everything you can to avoid becoming a victim of online fraud, especially at this time of year when people can be tempted by Black Friday or Cyber Monday offers that will be coming up as we head towards Christmas.”

Police say the website asks for details ranging from a name and an email address, to asking for proof of ID and bank details. It then states that the voucher is not available and the value will instead be paid in to the person’s bank account.

People are asked not to share these posts online or interact with the website.

Concerns should be reported to Action Fraud by calling 0300 123 2040.