Officers from the National Intelligence and Security Agency (NISA) intercepted a container full of military equipment.
The NISA officers were at the seaport of Mogadishu when they encountered and intercepted the container.
Mohamed Haga, the State Minister for Internal Security, confirmed the latest development.
He added that the container was nabbed on Saturday.
It was full of materials designed for making explosive devices.
This marked the second time security agencies were making such an interception over the last three days.
NISA suspect that the container belongs to a trader or several traders sympathetic to Al-Shabaab terrorists.