A Cambodian prince and former prime minister was injured and his wife killed in a head-on collision on a highway in the country’s southwest on Sunday. Prince Norodom Ranariddh and his wife Ouk Phalla were rushed to hospital after a taxi travelling in the other direction slammed into their motorcade in Preah Sihanouk province. He was travelling from the riverside town of Kampot to Preah Sihanouk as part of campaigning for controversial national elections set for July 29. Ranariddh, the half-brother of Cambodia’s King Norodom Sihamoni and son of the late monarch Norodom Sihanouk, has had a fraught relationship with Cambodia’s Prime Minister Hun Sen, who has been in power for 33 years.