The accused were containing drug capsules in their stomach.

A spokesman of ANF told APP here that it will take at least three days to fully recover the capsules from the stomach of the accused.

He said the capsules are recovered with the assistance of proper medication to flush out the capsules from their body.

He said an FIR has been registered against the accused and they were in their custody.

"The accused were proceeding to Dhaka from Jinnah International Terminal, Karachi, but we arrested them before they could enter the departure lounge," he added.