Terror groups are planning another attack on the scale of 9/11, US security chief warns.

New details emerge 10 years on from the Urewera terror raids.

Two people have been arrested over the attack which left more than 300 dead, may missing.

MI5 director has warned it is impossible to stop every terror attack.

North Korea has sent a chilling threat to Australia warning of a 'disaster' to come.

Ten years after his arrest as a 'terrorist', Tame Iti talks Tuhoe and how he 'let it go'.

After captured by ISIS, young girls were forced to stand against a wall while men groped.

A fun-filled concert turned to horror. Now investigators are trying to work out a motive.

Senior law enforcement claims Vegas gunman may have planned to attack another concert.

Audio from police scanners and images from shooter's room leaked.

A Kiwi security expert explains how to survive a mass shooting or acts of terror.

Marseille attacker was an illegal immigrant in his 30s with roots in North Africa.

A Somali refugee has been charged with five counts of attempted murder in Canada.

A police officer was stabbed and four people injured in Edmonton, Alberta attack.

Islamic State terrorist films his own death with GoPro as he is hit by a grenade.

Otto Warmbier's parents speak out: 'North Korea is not a victim. They're terrorists.'

The Advertising Standards Authority reversed its decision, upholding the complaint

The second person arrested over London bombing was also a refugee foster child.

Donald Trump has suggested Scotland Yard knew about the Green Tube bombing perpetrators.

Erika Pinfold was going to Parsons Green station when the tube terror attack happened.

Incorporate a "what if" scenario into your travel plans in case of terrorist attacks.

Documentary reveals why Osama bin Laden became evil mastermind behind 9/11 attacks.

Terrorists could break into the British Parliament in under five minutes.

British paramedics to start carrying antidote to deadly nerve gas amid fears in Britain.

The tourist rushed to aid the boy, believed to be young Australian Julian Cadman.

Sydney boy Julian Cadman has been confirmed by family as one of the 14 people killed.

Investigators believe the famous Sagrada Familia was target.

EDITORIAL: Motor vehicles have become an easy instrument of terror.

The "ideal vehicle" would be large in size and with a raised chassis that can clear curbs.

The family of young Australian boy is calling for help to find him after terror attack.