It follows growing criticism from Kenyans targeting Tanzania's president over the recent deportation of activists.

Concentration camps and pseudoscientific experiments were used by German officials to torture and kill.

The health crisis is fuelled by the war which has destroyed vital infrastructure, aid agencies say.

The measure sparks criticism from motorists and opposition, who see it as an extra tax burden.

Criticism is growing after several top positions go to members of the president's ethnic Yoruba group.