The head of Fiji's Citizens Constitutional Forum, the CCF, says by stopping pension payments to its critics, the interim regime is abusing its powers.
The interim Prime Minister Frank Bainimarama has told Radio Fiji that the decree was passed last week and the pension cuts are effective from this week for people who have spoken out against the interim regime.
He didn't say how many retirees have lost their pension and the National Provident Fund, which is a key pension provider, has been unavailable for comment.
However, the CCF's head, the Reverend Akuila Yabaki, says the regime has gone too far.
"We call on the interim government to respect human rights and refrain from implementing discriminatory laws, such as this decree. A pension is the rightful entitlement of public servants who earned this through their long service career."
The Reverend Akuila Yabaki
The interim regime seized power in a military coup, abolished the constitution and rules by decree that cannot be challenged.