Cash machines targeted in East Yorkshire and northern Lincolnshire
Bank customers using cash machines across East Yorkshire and northern Lincolnshire are being warned about skimming devices on terminals.
Humberside Police issued the warning after one of the devices was found on a supermarket machine in East Yorkshire.
The devices let criminals copy a user's card details and access accounts.
Anyone spotting a skimming device or miniature camera above the terminal keypad should contact the police.
Humberside Police issued guidance saying: "If you see an 'out of order' notice on a cash point which directs you to another machine, be wary.
"Always report any cash machines that appear to have a card stuck in the slot. You can report this to the bank or to the police."
PC Steve Wilson, from Driffield, said: "I am aware that a number of people will not notice these devices and will make their withdrawals as normal.
"Criminals use the copied details to produce a fake magnetic stripe card, which will be used - with the correct PIN - at cash machines or shops that haven't yet been upgraded to chip and PIN.
"Customers who shield the keypad when they enter their PIN are much less likely to fall victim to this type of fraud."