Both the US and China could lose out if chaos spreads in the Horn of Africa.
The Oromia region was once made up of autonomous sultanates with distinct cultural traditions.
The longest mobile Internet service shutdown follows escalating protests which began in November last year, with the Oromo people calling for freedom.
Ethiopian opposition claims at least 50 people died.
Largest ethno-national group has been under martial law with citizens killed and subjected to beatings, torture and detention in concentration camps.
Restricting access isn’t a policy and may be because of “erratic” connections, according to the government spokesman
Protesters allege "security forces have shot randomly into crowds, summarily killed people... carried out mass roundups, and tortured detainees"
Seven Ethiopian security forces killed, state buildings damaged, in restive Oromia region - minister
Security forces killed as many as 140 people at the “generally peaceful” Oromo protests, New York-based Human Rights Watch said
Like elsewhere on the continent transitioning from stability and high economic growth to a shared prosperity in an open democracy proving difficult.
The 'Ethiopian model' runs into a wall; economic ambitions clash with politics as Oromo protests surge
The unrest highlights the conflict between the countries authoritarian development model and its system of federalism.
It is at least the sixth time Ethiopia has crossed into Kenyan territory, and could strain erstwhile strong bilateral ties