Police say two people in Honiton and Crediton are among the latest victims of telephone fraudsters.
A total of 138 thousand pounds has been stolen in three incidents, the third in Cornwall.
The fraudsters phone people and con them into withdrawing large sums of money from their bank and handing it over - or divulging their card details or PIN numbers.
Police are asking banks to help prevent the frauds by being on the alert for any customers making large cash withdrawals, and passing on the information to them if it seems suspicious.
Knife scanner deployed at under-18s event
No to Torquay seafront big wheel this summer?
Torbay hospital ‘sewage leaks’ spark call for help
Exmouth dye tests 'harmless to wildlife'
Dartmoor will be “protected” in Freeport zone
Two jailed after late night brawl in Plymouth
