Estonian charged over WA skimming scam

An Estonian national has been charged over a card-skimming scam that duped ATM users in Perth out of more than $100,000.

Police say the unauthorised bank transactions between August 31 and September 28 were linked to two compromised ATMs.

They say the 32-year-old was charged with four offences as part of an ongoing investigation into international established criminal networks involved in card skimming in WA.

"The bank involved quickly alerted police to the situation and were also able to provide information that assisted with identifying a person involved in the alleged offences," Financial Crimes Squad detective sergeant Ian Lewis said.

The man was refused bail when he faced Perth Magistrates Court on Thursday and will front the same court on October 31.

Police remind ATM users to be vigilant when using the machines, checking the card entry slot to ensure it is firmly attached and covering hands when entering PINs.