Alastair Leithead reports that allegations of a significant elephant-poaching problem in Botswana have sparked a political row between the president and his predecessor. Show more

BBC Africa correspondent Alastair Leithead investigates the alleged links between the illegal rhino horn trade and corruption in Zululand's courts and its national parks.

Poachers are wiping out Africa's elephants to feed Asia's hunger for ivory. Alastair Leithead joins the war on poaching and meets the hunters saving Namibia's elephants. Show more

The world's longest river flows from Lake Tana in Ethiopia, through Sudan and into Egypt and is vital to all three countries. But who controls the water? Alastair Leithead reports.

Alastair Leithead takes the first part of an epic journey from the Atlantic Ocean to the far reaches of the Congo river. He explores how history has shaped the Congo of today. Show more

Alastair Leithead takes the second part of an epic journey from the Atlantic Ocean to the far reaches of the Congo river. He explores how history has shaped the Congo of today. Show more

BBC Africa Correspondent Alastair Leithead investigates the alleged links between the illegal rhino horn trade and corruption in Zululand's courts and its national parks. Show more

The world's longest river flows from Lake Tana in Ethiopia, through Sudan and into Egypt and is vital to all three. But who controls the water? Alastair Leithead reports. Show more

Poachers are wiping out Africa's elephants to feed Asia's hunger for ivory. As Kenya burns the biggest haul of tusks in history, the BBC's Alastair Leithead joins the war on poachi Show more