actor1: Police Forces of Pakistan (2013-2018)
actor2: Unidentified Armed Group (Pakistan)
notes: One attacker was killed and a police constable was injured during an attack on a polio vaccination team in the Tambulak area of Khyber Pakhtunkhwa's Mardan district on May 19.
target_text: actor1: Police Forces of Pakistan (2013-2018), actor2: Unidentified Armed Group (Pakistan)