Ethiopian officials say scores of people have been injured, some critically, in an explosion at a rally for the new PM Abiy Ahmed.
Earlier Mr Abiy had said that several people had died.
Mr Abiy described it as an “unsuccessful attempt by forces who do not want to see Ethiopia united”.
He was whisked away immediately after the blast, thought to be from a grenade thrown amid thousands of people in Addis Ababa’s Meskel Square.
His Chief-of-Staff Fitsum Arega said 83 people had been injured, six critically.
Mr Abiy only became prime minister after his predecessor Hailemariam Desalegn unexpectedly resigned in February.
Since taking office he has begun passing a series of reforms, including unblocking hundreds of websites and TV channels.