...Mrs [Susan] Tsvangirai died on the spot. The accident happened between 1600 hours (14:00 GMT) and 1700 hours but the details are still sketchy," the source said.
Tsvangirai is in a stable condition, a senior MDC official said after visiting him at a private hospital on the outskirts of Harare. An aide was also hurt in the crash.
"He is in a stable condition but on a machine," the official said, adding that he did not know what kind of treatment Tsvangirai was getting.
State television reported that Tsvangirai suffered some head and neck wounds in the crash...
Haru Mutasa, Al Jazeera's correspondent in Nairobi, Kenya, said that Tsvangirai's car was travelling as part of a convoy at the time of the crash.
"People are wondering how this could happen if he were travelling in a convoy. Why was his car the only one apparently damaged?" she said...