“Zimbabwe’s MDC party says it will carry out its own investigation into the cause of Friday’s crash in which Morgan Tsvangirai’s wife Susan died. But officials have said nothing to suggest they suspect foul play. US embassy officials say the lorry which collided with Mr Tsvangirai’s car belonged to a partner organisation of the US government aid agency USAID. MDC general-secretary Tendai Biti paid tribute to Mrs Tsvangirai, calling her “a mother to us and to our struggle”. On Saturday afternoon, Mr Tsvangirai, 56, left the Harare clinic where he was treated for injuries sustained in the crash.”