Unidentified gunmen shot dead former PPP ticket-holder Babar Sohail Butt inside his residence late on Sunday night, DawnNews reported.

Butt was having dinner when gunmen, allegedly with the assistance of his guard, stormed into his house and opened straight fire on him, police sources said. Butt succumbed to his injuries at the Services Hospital.

The deceased contested for an MPA seat from PP-157 constituency in the 2013 elections on a PPP ticket and served as a member of the PPP-affiliated People’s Youth Organisation (PYO).

Aseefa Bhutto-Zardari, younger sister of PPP chairperson Bilawal Bhutto-Zardari, in a tweet called for an investigation into the murder.

"They are still trying to silence us. Hope an investigation is conducted, anyone involved should be prosecuted," she wrote.