SIERRA MADRE (CBS) — If you filled up your tank in Sierra Madre recently, the police may want to speak with you.

READ MORE: Authorities Investigating After Pedestrian Struck, Killed In Winnetka

Customers are being urged to contact the police after reports of credit and debit card fraud at the Valero gas station at the corner of Baldwin and Sierra Madre Boulevard.

The discovery marks the second gas station in Sierra Madre that has been targeted by scammers.

READ MORE: Limestone Canyon Nature Preserve To Reopen In February After Closing Due To Wildfires

Police were initially alerted after several customers said their credit or debit cards were illegally charged after purchasing gas at the station.

A gas pump door was later found to have been pried open with a “fraud skimmer” placed inside to illegally obtain card and pin numbers.

MORE NEWS: Long Beach Man Identified As Dead Diver Found On Huntington Beach Coast

Back in January of last year, police investigated a reported 175 cases of fraud topping over $49,000 in losses linked to EVG Quality Gas at 50 South Baldwin Avenue.