On the thirtieth anniversary of the end of the Biafran civil war in south-east Nigeria, the former secessionist leader, Chief Emeka Ojukwu, has said that the problems which caused the conflict remain unresolved.

In a BBC interview, Chief Ojukwu said his Ibo people remained excluded from power, and he added his support to calls for a national conference to assess Nigeria's future.

During the three-year struggle by the Ibo people to secede from Nigeria, at least one million people are thought to have died, mainly Biafran civilians who starved to death. The BBC Lagos correspondent says it was one of the most traumatic periods in Nigeria's history.

But he says that under Nigeria's new democracy, it is not just Ibos, but ethnic groups from all over Nigeria who are demanding a greater share of the cake and more autonomy.

From the newsroom of the BBC World Service