A team of the Rapid Action Battalion (RAB) on Sunday detained five traders in Khulna for selling illegal mobile phones.
They also seized 179 mobile phones, earphones and an Apple Watch, all worth about Tk1 crore.
The detainees have been identified as Aminul Islam Rony, 35, Aslam, 25, Russell Sheikh, 25, Ratan Barai, 22 and Miraj Hasan.
The seized mobile phones include 135 phones from Redmi brand, 15 from Realme, 14 iPhones, 11 Samsung phones, three phones from OnePlus brand, one from Vivo and one Honor 9 phone. The RAB team also seized one Apple Smart Watch and four Apple headphones.
Acting on a tip-off, a team of RAB-6 raided six mobile phone stores in New Market, Khulna on Sunday afternoon, RAB-6 sources said.
The detainees were handed over to Sonadanga Police Station and a case has been filed with the police station in this connection.