President Robert Mugabe has backed Iran's just cause on seeking nuclear power, as President Mahmoud Ahmadinejad continues his Zimbabwe visit. Zimbabwe's leader said both countries had been unjustly vilified and punished by Western countries. Iran is subject to a range of UN diplomatic and trade sanctions, although it insists its nuclear project is for energy, not to build a weapon. Mr Ahmadinejad is due to open a trade fair in Zimbabwe's second city later. But the visit has exposed the deep divisions in Zimbabwe's power-sharing government. The Movement for Democratic Change of Prime Minister Morgan Tsvangirai has condemned the visit and did not send anyone to welcome Mr Ahmadinejad at Harare's airport yesterday.