Social media was blocked in Ethiopia after questions from end-of-year exams were posted online , sparking a national scandal and leading to their annulment.
A government spokesman said the ban was aimed at stopping students taking university entrance exams this week from being “distracted.”
Facebook, Twitter, Instagram and Viber are inaccessible in the Horn of Africa nation.
“It’s blocked. It’s a temporary measure until Wednesday. Social media have proven to be a distraction for students,” government spokesman Getachew Reda told AFP.
Ethiopia is one of the first African countries to censor the internet, beginning in 2006 with opposition blogs, according to experts.
Prominent blogger Daniel Berhane denounced the move as a “dangerous precedent.”