KARACHI, Dec 28 (Reuters) - Security forces in the Pakistani province of Sindh have been issued orders to shoot violent protesters on sight as disturbances over the killing of opposition leader Benazir Bhutto flared, an official said. "Yes, shoot on sight anybody who wants to damage the life of innocent citizens and public property," provincial Interior Minister Akhtar Zaman told Reuters on Friday. (Reporting by Kamran Haider; Editing by Robert Birsel)