Haider was  elected to the provincial assembly  from  Orangi  Town PA -No.94. Sources said Haider was inside a mosque in  Nazimabad area when  two unknown attackers sprayed bullets on him and his body guard, Khalid  Khan.

Reacting over the lawmaker's killing, police said, "Target  killing  has  become  a  routine  matter  in  Karachi. Raza Haider  also fell  victim  to this  menace."

Interior Minister Rehman Malik held Lashkar-e-  Jhangvi responsible for the  murder  of the MQM law  maker.

Talking  to  journalists Malik  said, "Terrorists  have entered in Karachi. Their  presence in target killing cannot be ruled  out."