actor1: Police Forces of Pakistan (2008-2013)
actor2: Unidentified Armed Group (Pakistan)
notes: A powerful explosion occurred after unidentified militants planted an explosive device on Umarzai police station, Charsadda on 8 February 2011. Buildings were damaged but no loss of life reported.
target_text: actor1: Police Forces of Pakistan (2008-2013), actor2: Unidentified Armed Group (Pakistan)