Police officers probing the ATM fraud that left a 74-year-old woman’s son poorer by Rs 90,000 have written to the bank where the victim has an account to know about the locations of the ATMs from where the money was fraudulently withdrawn.

Sanghamitra Ghosh, a resident of Golf Green, had gone to the ATM of a nationalised bank on Uday Shankar Sarani on Saturday with son Bodhisatwa’s debit card.

The officer heading the probe said they had collected CCTV footage of the accused from the ATM kiosk where the woman was duped and the card replaced, and circulated his photographs among all police stations in the city.

“The man was wearing a mask. His face is not fully visible,” the officer said.

An investigator said the accused must have withdrawn the money from various ATMs.