Ethiopian police have arrested Jawar Mohammed, owner of the locally powerful Oromia Media Network (OMN).
The TV channel has been shut down.
The move reportedly comes after unrest locally following the shooting and killing of popular singer, Hachalu Hundessa, on June 29th in the Ethiopian capital Addis Ababa.
Jawar was reportedly arrested along with Bekele Gerba, a veteran opposition activist. The duo were arrested at the Oromo Cultural Center in Addis Ababa, where they were attending the funeral of Hachalu.