Isis has claimed responsibility for the deadliest mass shooting in American history. Police said at least 50 people were killed and 200 wounded when a gunman opened fire on dense crowds at a concert in Las Vegas. Officials have identified the shooter as Stephen Paddock, a 64-year-old American who had multiple weapons on the 32nd floor of a nearby hotel, where he is believed to have killed himself.

At least 50 people were killed in the deadliest mass shooting in US history outside the Mandalay Bay Resort and Casino on the Las Vegas Strip during a music festival on Sunday night. Witnesses said shots were being fired from an elevated hotel position.

An Islamic State militant was responsible for a knife attack at a Marseille train station in southern France that killed two women on Sunday, the group's Amaq news agency said.

Three men accused of conspiring to bomb a Kansas mosque and an apartment complex housing Somali refugees also allegedly discussed killing the refugees’ white landlord because he rented to Muslims, a move prosecutors say was meant to ensure the attack fully conveyed their anti-Muslim message.

Canadian police have confirmed they are investigating possible acts of terrorism after multiple incidents in Edmonton, Alberta, on Saturday night. They said a police officer controlling traffic at a Canadian Football League game was struck by a car at high speed and then attacked with a knife. A man driving a van went on to hit at least four pedestrians and was arrested two hours later after a police chase.

One man was shot dead by French police on Sunday in Marseille's main station after attacking people with a knife, local media reported. Two victims were stabbed to death in the attack, Le Parisien and news agency Agence France-Presse reported, citing local officials. The man shouted "Allahu Akbar" before being shot dead by security forces, La Provence and Reuters reported. French police said it was a likely terror attack, Reuters reported. Anti terror police said they were opening a probe.

Independent data reportedly paints an even starker picture, putting the number of attacks planned by white nationalists as double those of jihadist movements.

High-rise buildings surrounded by parks and villas pierce the skyline. Hotels and luxury cars dot the landscape. It would be easy to mistake this place for a neighborhood in uber-rich Dubai, but in fact it is downtown Irbil, the capital of Iraqi Kurdistan. Ahmad, a taxi driver, motions proudly to signs of his city's rapid development. He points out newly-built bridges and luxury housing projects and gestures to the tarmacked roads and wide pavements.

The FBI has about 1,000 open investigations into potential domestic terrorists, including people who may be linked to extremist white supremacy, white nationalism and environmental movements, the agency's new chief, Christopher Wray, told Congress today. During his first testimony as FBI director, Wray said domestic terrorism is “a very, very serious” matter that the investigative agency spends “a lot of our time focused on.”

Police have arrested 11 suspected members of a neo-Nazi group on suspicion of terror offences across England and Wales. Six men were arrested in north west England, including one suspect who was already in prison, two in Wales, two in West Yorkshire and one man in Wiltshire. Counter-terror police are searching their homes.

One person was killed and eight others wounded Sunday after a man in a ski mask opened fire following a church service in Antioch.

U.S. bombers fly off North Korea’s east, says Pentagon. North Korea’s Foreign Minister Ri Yong-ho told the United Nations on September 23 that U.S. President Donald Trump would be held totally responsible if innocent Americans are harmed by suicide attacks. He said Mr. Trump had made our rockets’ visit to the entire U.S. mainland inevitable by calling North Korean leader Kim Jong-un “rocket man”.

It takes more than religious fanaticism or hatred to make someone take innocent lives, but recognise the true roots of ISIS-inspired terror and they can be addressed.

Twitter Inc., under pressure from governments around the world to combat online extremism, said that improving automation tools are helping block accounts that promote terrorism and violence.

The number of people arrested for terrorism-linked offences rose 68% to a record 379 in the 12 months to June, one of the most intense periods for terrorist attacks in recent history. The Home Office said it was the highest number of terrorist arrests in a year since records began in 2001. They included 12 arrests linked to the Westminster attack in March, 23 connected with the Manchester Arena bombing in May, 21 arrests following the London Bridge attack in June and one in relation to the Finsbury Park van attack soon after.

An 18-year-old man has been arrested in connection to a terrorist attack on a London underground train, which left 30 people injured when a homemade bomb exploded during peak hour, police say. The man was arrested in Dover, a major ferry port for travel between Britain and France on England's south-east coast, on Saturday morning (local time).

Donald Trump says that the internet must be "cut off" to stop further terror attacks. Responding to the terror incident at Parsons Green Tube station, he said that the internet was a terrorist "recruiting tool". "Loser terrorists must be dealt with in a much tougher manner," he wrote. "The internet is their main recruitment tool which we must cut off & use better!"

The concept would be familiar to anyone who has watched the Spiderman movies.

Catalan police evacuated the iconic Sagrada Familia church in central Barcelona after a bomb scare, after a "suspicious" van was parked near the church. The surrounding streets were also cleared and public transport was diverted. An anti-terrorism operation was announced after concern was raised over the vehicle, which had two people inside. No one was detained.

In June 2015, he shot and murdered nine black church-goers in Charleston, South Carolina, hoping to ignite a race war. Rachel Kaadzi Ghansah spoke with Roof's family, friends, and the victims' families to unlock what created one of the coldest killers of our time.