Khieu Samphan arrives in Cambodia

PHNOM PENH, Cambodia, Nov. 14 (UPI) -- Khieu Samphan arrived Wednesday in the Cambodian capital amid speculation the ailing former Khmer Rouge premier may face U.N. tribunal genocide charges.

He was taken to a hospital for treatment immediately after he landed in Phnom Penh, CNN reported.

The BBC reported Cambodian Prime Minister Hun Sen arranged for Khieu Samphan to be airlifted from his home near the border with Thailand. The report quoted his family members saying they believe he had suffered a stroke.

The 76-year-old's arrival comes at a time when a U.N.-backed genocide tribunal has charged and arrested several former Khmer Rouge leaders in the killings of some 2 million people following the communist takeover of Cambodia in 1975. The Khmer Rouge was overthrown by Vietnam in 1979.

Khieu Samphan is the last living former Khmer Rouge leader who hasn't been charged.

The tribunal called the Extraordinary Chambers of the Courts of Cambodia is made up of Cambodian and international judges and was set up to prosecute those charged.

Earlier this week, Cambodian police arrested former Khmer Rouge Foreign Minister Ieng Sary and his wife, the report said.