Which 7 Pakistan players have been kicked out and sent home midway through England tour?

Pakistan sent seven players home midway through their England Test tour after losing the first two matches. Muhammad Rizwan, Imam-ul-Haq, Salman Ali Agha, Ali Usman, Aamir Jamal, Muhammad Awais Zafar and Khurram Shahzad were released from the squad. Notably, all-rounder Jamal and batter Zafar didn't even feature in the first two matches.