The Pakistani Taliban on Thursday claimed credit for killing a lower court judge in the city of Rawalpindi, the insurgent group said in a statement, the latest in a series of attacks on civilians working for the criminal justice system. Pakistan, a nuclear-armed nation of 190 million people, is plagued by criminal gangs, sectarian militants and a Taliban insurgency. Threats and attacks on civilian judges and lawyers prompted the government to set up secret military courts in February to try militant suspects, following a Taliban massacre of 134 children at an army-run school last December. “Our special task force has targeted additional session judge Tahir Khan Niazi in Rawalpindi successfully,” Taliban spokesman Muhammad Khorasani said in an emailed statement. He did not say why Niazi was targeted. Abdul Hafiz, a clerk at the sessions court in the city next to the capital, Islamabad, confirmed Wednesday’s killing.