Incident Summary:

04/19/1987: A bomb explosion destroyed a 1984 unmarked, unoccupied police car, which was parked outside Missoula City Hall in Missoula, Montana, United States. The blast also shattered windows in City Hall and other nearby buildings, but no injuries resulted from the incident. About five minutes after the explosion, a male caller, claiming to be a member of the Aryan Nation white supremacist group, phoned an emergency number and claimed responsibility for the incident, stating that the group was tired of harassment from law enforcement agencies.



United States

North America

region/u.s. state:



Location Details:
1 at unoccupied police vehicle parked outside Ciy Hall

Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Police
Name of Entity Montana Police
Specific Description unoccupied police car in Missoula, Montana
Nationality of Target United States
Additional Information
Hostages No
Ransom No
Property Damage Yes
Extent of Property Damage Minor (likely < $1 million)
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Explosives/Bombs/Dynamite Unknown Explosive Type
Weapon Details
the bomb type is unknown, but the explosive was placed underneath the car, and blew a hole about 18 inches square and 4 inches deep in the asphalt under the front passenger seat
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Additional Information The explosion occurred at about 3:10am. It appears three phone calls were made to emergency numbers, all from the same male caller stating he was a member of the Aryan Nation and claiming responsibility for the bombing on behalf of the group.
Perpetrator Group Information
Group Name Claimed Responsibility
Aryan Nation (suspected) Yes (Confirmed: Unknown; Mode: Call (post-incident))
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators Unknown
Casualty Information
Total Number of Casualties 0 Fatalities / 0 Injured
Total Number of Fatalities 0
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 0
Total Number of Injured 0
Number of U.S. Injured 0
Number of Perpetrators Injured 0
"Bomb Destroys Police Car," The Associated Press, April 19, 1987.
"Team hunts bomb clues in Missoula," Spokane Chronicle, Washington, April 20,1987.
"Bomb rips police car in Missoula," The Spokesman-Review, Spokane, Washington, April 20, 1987.