Voicing concern over Khaleda Zia's sudden illness in jail, BNP on Friday demanded the government immediately release her for her better treatment either at home or abroad.

"We are concerned over her health condition that's why we demand the government allow her personal physicians to examine her health condition and immediately free her from jail for ensuring better treatment", said BNP secretary general Mirza Fakhrul Islam Alamgir.

He came up with the remarks at a press conference at BNP's Nayapaltan Central office.

Replying to a question, he said they will take steps for ensuring better treatment for Khaleda after her release from her jail either at home or abroad as per her wish.

Party secretary general Mirza Fakhrul Islam Alamgir's a scheduled meeting with Khaleda was also postponed on Thursday as she suddenly fell sick in Nazimuddin Road Old Central Jail.

On February 8 last, a special court here sentenced Khaleda to five years' rigorous imprisonment in the Zia Orphanage Trust graft case.

Khaleda, a 73-year-old former prime minister, was taken to the old central jail minutes after the verdict had been delivered.