The arrested foreigners were seen suspiciously doing rounds of ATM booths on Karachi's Abdullah Haroon Road.
Local shop-keepers stopped the duo and handed them over to police, Geo TV reported.
Officials also confirmed that the two foreigners have been involved in ATM skimming, it said.
"They had come to detach skimming devices from the ATM machines," Naeem added.
ATM skimming is identity theft for debit cards. Fraudsters use different techniques to steal a person's PIN code for accessing the money in an account.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)