Security forces have killed terrorists involved in the recent abduction of district and sessions judge of South Waziristan in a joint intelligence-based operation (IBO) in Khyber Pakhtunkhwa’s Tank district, the military’s media wing said in a statement on Thursday. District and Sessions Judge Shakirullah Marwat on Monday was recovered safely a day after he was abducted by armed men near the border area of Tank and Dera Ismail Khan in Khyber Pakhtunkhwa.