PAKISTAN—Pakistani counterterrorism police said Sunday they killed five people involved in the abduction for ransom and subsequent death of a nationalist political party leader. The raid took place overnight in the southwestern city of Pishin, according to the Baluchistan province Counter Terrorism Department. Malik Ubaidullah Kasi, leader of the secular Awami National Party, was abducted for ransom from his native Kuchlak area near the provincial capital, Quetta, in late June. His body was found Thursday near an Afghan refugee camp in Pishin district. A statement issued by the CTD said investigators arrested a man after Kasi’s body was found. The suspect subsequently led investigators to the hideout in Pishin. Officers killed five men allegedly involved in Kasi’s abduction late Saturday night in a gun battle. Machine guns, hand grenades, and hand guns were recovered from the abductors’ hideout, police said. Kidnappings for ransom have been reported frequently in Baluchistan. Criminal …