Incident Summary:

"08/25/2017: An assailant wielding a sword attacked police personnel outside Buckingham Palace in London, United Kingdom. At least three police officers were injured before the assailant was arrested at the scene. No group claimed responsibility for the incident; however, sources identified the assailant as Mohiussunnath Chowdhury. Sources also stated that the assailant shouted "Allahu akbar" during the attack."

Overview

GTD ID:
201708250025

When:
2017-08-25

Country:
United Kingdom

Region:
Western Europe

Province/administrative
region/u.s. state:
England

City:
London

What

Attack Information
Type of Attack (more)	Armed Assault
Successful Attack? (more)	Yes

Target Information (more)
Target Type: Police
Name of Entity	City of London Police
Specific Description	Officers
Nationality of Target	Great Britain

Additional Information
Hostages	No
Property Damage	No

How

Weapon Information
Type	Sub-type
Melee	Knife or Other Sharp Object
Weapon Details
A sword was used in the attack.

Additional Information
Suicide Attack?	No
Part of Multiple Incident?	No
Criterion 1 (more)	Yes
Criterion 2 (more)	Yes
Criterion 3 (more)	Yes
Doubt Terrorism Proper (more)	No
Additional Information	Casualty numbers conflict across sources. Following GTD protocol, the most recent reliable estimates are reported here.

Who

Perpetrator Group Information
Group Name	Claimed Responsibility
Unknown	No

Perpetrator Statistics
Number of Perpetrators	1
Number of Captured Perpetrators	1

Casualty Information
Total Number of Casualties	0 Fatalities / 3 Injured
Total Number of Fatalities	0
Number of U.S. Fatalities	0
Number of Perpetrator Fatalities	0
Total Number of Injured	3
Number of U.S. Injured	0
Number of Perpetrators Injured	0

Sources

Sources
"London - Buckingham Palace 'sword man' charged with planning terror act," AFP (North European Service), August 31, 2017."
"Buckingham Palace terror suspect attacked police with sword," Deutsche Welle, August 26, 2017."

"Another suspected terrorist attack in London: This time a man wielding a 4-foot sword outside Buckingham Palace," Washington Post, August 26, 2017."