DHAKA, April 7 (Xinhua) -- Hundreds of Bangladeshi opposition men Sunday observed a mass hunger strike in capital Dhaka demanding ex-Prime Minister Khaleda Zia's release.

The hunger strike event started at around 10:30 a.m. (local time) on Sunday and continued until 3 p.m. (local time).

Khaleda Zia, chairperson of Bangladesh Nationalist Party (BNP), has been in jail since February last year after a court sentenced her over the alleged embezzlement of foreign funds.

Last week the wheelchair-bound Khaleda Zia was once again admitted to Bangabandhu Sheikh Mujib Medical University from Old Dhaka jailhouse in the capital Dhaka.

Also again on Sunday the BNP men demanded proper treatment to their ailing leader.