An improvised explosive device created a fireball on an Underground train at the Parsons Green station in southwestern London on Sept 15, injuring 20 people. Authorities believe that the device was meant to explode more violently but had been poorly built.

As the suspected perpetrator, police arrested an 18-year-old Iraqi national who had been in the UK foster-child system since arriving in England a few years ago after his parents died during the conflict with Daesh. No group has...

In knife and car attacks, five people were injured after a Canadian football game in Edmonton, Alberta, Canada, on Oct. 1.

The attacker, identified as a Somali-born refugee, struck a police officer with a car, then stabbed him before fleeing on foot. Police found a flag of Daesh in the car. Police broadcast the name of the owner of the vehicle, and at a police checkpoint later that night, he was identified driving a U-Haul truck. The driver sped off in the truck and, while being...

Following several months in which numerous employees of the US Embassy in Havana had been targeted in specific attacks, on Sept. 29 the US Department of State ordered the departure of nonemergency US government embassy employees and their family members from Cuba, and it warned US citizens against traveling to Cuba. 

The governments of the US and Cuba have been unable to identify the source or nature of the attacks or the responsible party, but embassy employees have suffered...