Zimbabwe Prime Minister Morgan Tsvangirai was flown to neighboring Botswana for medical tests on Saturday after being seriously injured in a car crash that killed his wife, his party said. “I do not know when he will be back, he will undergo a check-up, but he is out of danger now,” a spokesman for Tsvangirai's Movement for Democratic Change (MDC) said. Movement for Democratic Change's spokesman Nelson Chamisa said the party's national executive committee would investigate whether foul play was involved in the accident. The UK Foreign office confirmed Saturday that the truck involved in the accident was owned by a joint US-British project. It also said the crash was an accident. “We can confirm that the truck was operated by a project jointly funded by the United States and United Kingdom,” a Foreign Office spokeswoman said. “All indications are that this was a genuine accident.” “The driver was not asleep, he was well rested and had not been drinking. We cannot preempt any investigation by giving further details at this stage,” the spokesman said. His comments contradicted those of a minister from Tsvangirai's Movement for Democratic Change who said the driver appeared to be sleeping when the accident happened. Tendai Biti, Zimbabwe's finance minister said a police escort could have prevented the crash. “If there had been a police escort, what happened could not have happened,” said Tendai Biti, who is also the number two leader of Tsvangirai's MDC party.