The attack took place around 10.30 p.m. at the office of Ghosia Foundation in Hyderabad city, senior police superintendent Pir Fareed said.
Four gunmen entered the office and opened fire, Fareed said. The assailants fled the scene after the attack.
The foundation in Hyder Chowk is owned by a religious group.
Police have detained eight suspects, Xinhua reported.
The injured were shifted to civil hospital in Hyderabad, the second largest city in southern Sindh province.
Islamabad: Gunmen stormed an office of a charitable organisation in Pakistan Sunday night, killing at least three people and injuring six others.
First Published: Monday, November 05, 2012, 10:56