actor1: Unidentified Armed Group (Pakistan)
actor2: Police Forces of Pakistan (2013-2018)
notes: In a suicide attack a police officer and three others were killed in Karachi.The explosion took place in a tailor's shop near police officer's residence in city's Old Sabzi Mandi area.No group has claimed responsibility for the attack.
target_text: actor1: Unidentified Armed Group (Pakistan), actor2: Police Forces of Pakistan (2013-2018)