Eleven people, including eight Myanmar nationals, have been detained at Chittagong entrance point area of the district.
Among the detainees three were identified as Bangladeshi brokers and the others as Myanmar nationals.
The police searched a bus and detained them at the entrance point in Shah Amanat Karnafuli Bridge area around 8am on Sunday.
Bakulia police station Officer-in-Charge Mohammad Mohsin said: “We searched the bus as a part of our regular routine work. We are estimated that they were planning to go to Malaysia through Bangladesh.”
“But we are not sure if they had come to the country to conduct any subversive act,” he said.