Incident Summary:

07/21/2005: In one of four coordinated attacks, a bomb exploded on the London transit system at the Oval Station, train station, causing no fatalities and only limited injuries in a very similar attack to those on July 7, 2005. Abu Hafs al-Masri Brigades claimed responsibility for these attacks. Documents found by German authorities in 2011 indicate al-Qaida's role in planning and coordinating the attacks.



United Kingdom

Western Europe

region/u.s. state:



Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Transportation
Name of Entity London Transit
Specific Description Oval Station Train Station
Nationality of Target Great Britain
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 Unknown Explosive Type
Additional Information
Suicide Attack?No
Part of Multiple Incident?Yes
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) No
Additional Information This is a related attack with 200507210002, 200507210007, and 200507210008. The four explosions followed the same pattern as the London attacks from July 7, 2005. The Abu Hafs Al-Masri Brigade, the same group that claimed responsibility for the July 7 bombings also claimed to have carried out the attacks on July 21.
Perpetrator Group Information
Group Name Claimed Responsibility
Al-Qaida Yes (Confirmed: Unknown; Mode: Posted to website, blog, etc.)
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators 0
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
Phillip Coorey and Deborah Haynes, “String of Explosions Create Panic, Bombs Shut Down London,” The Advertiser, July 22, 2005.
"Mirror Image Terror Attacks Hit London but Carnage Not Repeated,” Agence France Presse, July 21, 2005.
“Al-Qaida-Linked Group Claims Responsibility for London Bombings,” Xinhua General News Service, July 22, 2005.