Incident Summary:

3/30/1971: The Jewish Defense League is suspected of planting a pipe bomb in front of a building that housed the headquarters of the Communist Party USA in Manhattan, New York, United States. There were no casualties but the front door of the building was damaged and windows at surrounding buildings were shattered.



United States

North America

region/u.s. state:

New York

New York City

Location Details:

Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Private Citizens & Property
Name of Entity Communist Party USA
Specific Description Communist Party USA, New York Headquarters
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 Pipe Bomb
Weapon Details
Ten inch pipe bomb
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 Associated Press received a predawn phone call from an unknown person announcing that there would be a bombing at the building. The Jewish Defense League denied involvement in the incident. Later in the day, the Students Activists for Soviet Jewry, a front for the JDL, demonstrated in front of the building. The bombing coincided with the opening of the congress of the Communist Party in Moscow which was attended by delegates of the American Communist Party.
Perpetrator Group Information
Group Name Claimed Responsibility
Jewish Defense League (JDL) (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
"Militants Communists Protest," Sarasota Journal, March 30, 1971.
"Headquarters of U.S. Red Party Bombed," Lundington Daily News, March 30, 1971.
Shlomo Russ, "Zionist Hooligans: The Jewish Defense League," City University of New York, 1981.