PHNOM PENH, Cambodia (AP) -- A Cambodian appeals court on Tuesday upheld a guilty verdict against a New Zealand man convicted of raping five Cambodian girls who worked as maids at his house.

Prosecutors provided enough evidence to prove Graham Cleghorn, 60, had sexually abused the girls, said Thou Muny, the head of the three-judge Cambodian Appeals Court.

Cleghorn did not attend Tuesday's hearing in the capital, Phnom Penh, but his defense attorney, Ouk Ry, called the verdict unfair and said his client would appeal to the Supreme Court.

As the process was in accordance with Cambodian law and proper judicial process, New Zealand accepted the outcome, Grant Traill, second secretary with the New Zealand Embassy in Thailand, who was in Phnom Penh to follow the case, told reporters.

The verdict handed down Tuesday was for an appeal case heard last Wednesday in a close-door session in which Cleghorn pleaded his innocence and sought to overturn a 20-year prison sentence handed down against him by a provincial court in 2004.

Cleghorn, from Wellington, was sentenced for raping five girls at his home in Siem Reap province, 230 kilometers (140 miles) northwest of the capital, Phnom Penh. The girls' ages have not been disclosed.

Cleghorn moved to Cambodia in the late 1980s and worked in Siem Reap as a tourist guide. His Cambodian wife, Bout Toeur, was convicted of conspiring to collude in the rapes. She received a three-year suspended sentence.

Cleghorn maintained in an earlier statement that he was framed by the Cambodian Women Crisis Center, a nonprofit group that provided shelter and legal counseling to the girls.