Islamabad [Pakistan], April 11 (ANI): Pakistan Tehreek-e-Insaf (PTI) and Jamaat-i-Islami has expressed serious concerns over the deteriorating security situation in Sindh, particularly Karachi. Imran Khan-founded party blamed the Pakistan Peoples Party (PPP) government for failing to reduce crimes. PTI-Sindh president Haleem Adil Sheikh called for the resignation of the Sindh police chief. Meanwhile, the JI chief Hafiz Naeemur Rehman reiterated his demand to purge the Sindh police of “black sheep” and include residents in the force. While addressing a press conference, Haleem Adil Sheikh conde…