LUCKNOW, May 19 -- Days after arresting 12 accused from Lakhimpur Kheri in an alleged interstate cyber fraud racket, Uttar Pradesh Police have intensified investigations into what officials describe as a large mule-account and digital identity network used to facilitate online financial fraud across multiple states.

Officials at the Cyber Crime headquarters in Lucknow said the Cyber Crime police station in Lakhimpur Kheri conducted a raid on May 15, during which investigators uncovered a massive cache of SIM cards, ATM cards, cheque books and identity documents allegedly used to operate fake and rented bank accounts for cyber crime operations.

According to investigators, the gang allegedly targeted poor, unemployed and financially vulne...