In a statement issued on Tuesday, the agency said the arrests took place a day earlier at the Sultan Iskandar Building (BSI) in Johor Bahru, The Star newspaper reported.
The suspects were found entering the area without proper authorization and were unable to present valid travel documents, Bernama reported.
Authorities warned the public against facilitating illegal immigration, stressing that those involved in transporting or sheltering undocumented individuals could face strict penalties, including the confiscation of vehicles.
Malaysia maintains strict immigration policies, enforcing heavy penalties for illegal entry and overstaying, including fines up to RM10,000 (US$2,529), imprisonment up to 5 years, and mandatory whipping (caning).