Malaysia's top court upholds opposition leader Anwar Ibrahim's sodomy conviction

Supporters of Malaysian opposition leader Anwar Ibrahim march towards the Palace of Justice at Putrajaya, Malaysia, Tuesday, Feb. 10, 2015. Malaysia's top court has rejected a final appeal from Anwar and sent him back to jail in a case seen at home and aboard as politically motivated to eliminate any threats to the government. (AP Photo/Joshua Paul) (The Associated Press)

Supporters of Malaysian opposition leader Anwar Ibrahim waves People's Justice Party flag, center, in front of the Palace of Justice at Putrajaya, Malaysia, Tuesday, Feb. 10, 2015. Malaysia's top court has rejected a final appeal from Anwar and sent him back to jail in a case seen at home and aboard as politically motivated to eliminate any threats to the government. (AP Photo/Joshua Paul) (The Associated Press)

A supporter of Malaysian opposition leader Anwar Ibrahim, cries while saying a prayer outside the Palace of Justice in Putrajaya, Malaysia, on Tuesday, Feb. 10, 2015. Malaysia's top court on Tuesday upheld opposition leader Ibrahim's sodomy conviction and sentenced him to five years in prison, a verdict he slammed as the "murder of judicial independence" and the result of a political conspiracy. (AP Photo/Joshua Paul) (The Associated Press)

Malaysia's top court on Tuesday upheld opposition leader Anwar Ibrahim's sodomy conviction in a case seen at home and aboard as politically motivated to eliminate any threats to the government.

Federal Court judge Arifin Zakat, who read the verdict on behalf of the five-judge panel, said the accusation by an Anwar aide that he was sodomized was credible, and that it was upholding a 5-year sentence imposed by the Appeals Court last year.

This was Anwar's last avenue for appeal, and it means he will go back to prison immediately.

Arifin said the defense allegations that the case was a political conspiracy "remains an allegation, unsubstantiated by any facts whatsoever."

Anwar was accused of sodomizing a male aide in 2008, but was acquitted by the High Court in 2012. However, the Appeals Court overturned the acquittal in March last year and sentenced him to five years in jail. He has said the charges were trumped up to kill his political career.

Anwar was seen as the most potent threat to Prime Minister Najib Razak's ruling party.