Police are investigating after suspicious devices were placed on TSB cashpoints in Aberystwyth.
A report was made that items suspected to be a camera and card reader were seen on two cash machines at around 6.45pm on Thursday, July 13th.
The devices have been seized for forensic examination.
Officers are also investigating after concerns were raised over a cash machine at the same location over the weekend.
A police spokeswoman said: “We would advise ATM users to be vigilant of any obvious tampering or unusual attachments.
“If you see anything suspicious do not remove any suspect devices or confront any fraudsters but report it to the police.”
Anyone who has information which could help the investigation is asked to contact 101.