TEHRAN - Iran's army conducted exercises Tuesday close to its border with Afghanistan designed to simulate how it would respond if "terrorist groups" such as the Islamic State organisation mounted an attack. The operation in the northeastern province of Khorasan came a day after a military commander said IS would be "neutralised" if it breached a 40 kilometre (25 mile) zone approaching Iran's borders. Tanks, helicopters and planes took part in Tuesday's manoeuvres, the ISNA news agency reported.–AFP

The exercise followed IS attacks that killed 129 people in Paris last week.