Saturday's attack took place in Biratnagar, a town 400 kilometers (250 miles) east of the capital, Katmandu. Two people died in the hospital and two others remained in critical condition, said chief government administrator Madhav Raj Regmi, adding that an overnight curfew had been imposed. The Nepal Defense Army also said it would attempt to disrupt April 10 voting to elect a Constituent Assembly, which will write a new constitution and decide the future political system for Nepal. The major political parties already decided the centuries-old monarchy system in Nepal would be abolished after the election. King Gyanendra seized absolute power in 2005 but was forced to give up his authoritarian rule in 2006 after weeks of pro-democracy protests. Since then he has lost all his powers and his command of the army.