Clashes broke out at a government-organised demonstration in Addis Ababa against the beheading and shooting of 30 Ethiopian Christians by Islamic State (Isis) militants in Libya.
Ethiopian demonstrators hurled stones and scuffled with police during a rally by thousands in the capital on 22 April, after a video showed dozens of compatriots being shot and beheaded by masked jihadists.
The government blamed the opposition for hijacking the march and fired tear gas canisters at the gathering in Meskel square.
Demonstrators were rounded up, beaten and many arrested as police sought to break up the rally.
The march was arranged to show solidarity with the families of those killed but scuffles erupted moments after Prime Minister Hailemariam Desalegn spoke.
Ethiopia has confirmed that those killed in the video, posted at the weekend, were its citizens and family members have so far identified two of them.
