More than £64,000 was lost by would-be holiday-makers from the region last year, who were conned by online criminals.
Humberside Police has issued a warning ahead of the holiday season for people to beware of online holiday scams.
In April this year, the force received nine reports from victims who had lost their money after being conned into booking caravan breaks that did not exist.
The majority of the victims had paid to rent caravans they had seen advertised on social media. However, on pressing the suspect for confirmation of their booking, or asked for a refund, they found all contact was blocked.
The incidents were reported to Action Fraud and are currently being investigated.
Detective Inspector Rich Osgerby, from the force cyber crime unit, said: “We would advise that you follow a number of basic checks, which can help minimise the risk of becoming a victim of fraud. These include researching the company you are looking to book through and ensuring it’s a member of a recognised trade body.”