Twin Bomb Explosion Hits Jos & Biu.Scores Feared Killed.

Two suicide bombers have killed at least 15 people at a bus station in north-eastern Nigeria, witnesses say.Only one of the bomber's explosives detonated properly, the other bomber died at the scene in Biu, witnesses told the BBC.A second bombing has hit a crowded bus station in the town of Jos, in north-central Nigeria.This is the latest deadly bombing in the region, where Boko Haram has been waging a six-year insurgency.On Tuesday, President Goodluck Jonathan said the tide had turned against militant group Boko Haram.

He added that its insurgency would "soon be over", as regional forces recapture territory from the group.More than 50 people died in Tuesday's attacks in Kano and Potiskum but no group has said it carried them out.Boko Haram still controls much of the north-eastern Borno state and has displaced more than three million people.

The rising violence has already led to the postponement of February's presidential elections, with the vote now due to take place in March and April.