Federal government forces and African union peace-keeping troops launched considerable security crackdown in Marka district in Lower Shabelle region.
The operations in the town started after AMISOM troops were targeted with land mine explosion in the middle of the town.
Government forces were seen conducting door to door search in Rozi village while AMISOM troops blocked the main roads.
Business activities in Marka town came to stand still as most people fearing to be affected by the operations stayed indoors.
The number of arrested individuals is not clearly known.