At least one person was killed while three others sustained injures during different firing incidents here on Wednesday, police said. Police recovered a body in the jurisdictions of Police Station Eidgah, who was shot dead by some unidentified persons. Police said that he was killed over enmity. In another incident, some unidentified persons opened fire on Mehtab. As a result, he sustained serious injuries. The incident occurred in the premises of Police Station Al-Flah while Mumtaz Khan was injured when some armed persons opened fire on him in Bin Qasim Town area. Police said that in Landhi area, Usman ,45, was injured in firing by unidentified persons. After the incidents, the injured were shifted to hospitals. Police registered cases of the incidents and started investigation.