Police have arrested four more men in connection with hacking of ATM systems of several different banks in Kathmandu.

A French national named Soo Luslee of Chinese descent was arrested from Tribhuvan International Airport on Sunday night while three Nepalis were picked up from Thamel on Monday.

Luslee was on his way to China when he was arrested.

On Saturday, police arrested five Chinese nationals and recovered Rs12.60 million and around $10,000 from them, which they had withdrawn by hacking cash systems of different banks using cloned Visa cards.

[Read: Millions stolen by ATM hackers exposes vulnerability of Nepali banks]

Police believe Luslee to be one of the members of the hacking group.

The three Nepalis—Devnath Lamichhane, Roshan Pradhan Shrestha and Rewat Dawadi—could have helped the thieves exchange the stolen currency, police said.

During the arrest of hackers on Saturday, three men had fled with Rs3 million.

They exchanged the currency at Desso Money Exchange which is located near the Employee Provident Fund building in Thamel. Because of a shortage of dollars at the money exchange counter, its operator had brought the required dollars from Nepalaya Money Exchange.

Lamichhane and Shrestha operate Desso Money Exchange and Nepalaya Money Exchange respectively, while Dawadi is the manager of Nepalaya Money Exchange.

Two more Chinese involved in hacking are still on the run, said the police.