Law, Justice and Parliamentary Affairs Minister Anisul Huq on Thursday said he does not know how to release BNP Chairperson Khaleda Zia who is already out of prison.

Khaleda Zia has become ill again.

When asked about the BNP's demand for her unconditional release, he said, "Look, I don't understand one thing. Khaleda Zia is free; I don't understand how to rerelease this free person.”

The law minister was speaking with reporters at his secretariat office on Tuesday.

The BNP chairperson was convicted in the Zia Orphanage Trust and Zia Charitable Trust corruption cases. An executive order has suspended her sentence and her release period is extended every six months.

The former prime minister has been suffering from various physical complications including arthritis, diabetes, kidney, liver, lung and eye problems for a long time.

She needs to be taken to the hospital now and then. Recently, a pacemaker was implanted in her heart.

On Monday, BNP Secretary General Mirza Fakhrul Islam Alamgir demanded the unconditional release of Khaleda from jail.