The Ethiopian government says it may send troops into neighbouring South Sudan, after a massacre in which 140 civilians were killed. 

Gunmen went on the rampage in Jakawa in the Gambela region on Friday, killing men women and children.

It's reported they also kidnapped dozens of children.

Ethiopia says it killed 60 of the attackers and may take the fight across the border.

South Sudan is in the throes of a civil war. The violence has in recent times spilled over into western Ethiopia where thousands of refugees from the conflicting are living.