Manchester, England
The announcement, which takes Britain’s alert level from “severe” to its highest rating, “critical,” clears the way for thousands of British troops to take to the streets and replace police officers in guarding key sites.
May announced the move after chairing an emergency meeting of her security cabinet and concluding that the attacker who carried out Monday’s bombing may have been part of a wider network that is poised to strike again. The decision, she said, was “a proportionate and sensible response to the threat that our security experts judge we face.”
The worst terrorist attack on British soil in over a decade was carried out by a 22-year-old British citizen who lived a short drive from the concert hall that he transformed from a scene of youthful merriment into a tableau of horror.
But whether Salman Abedi acted alone or with accomplices remained a question that British investigators were urgently trying to answer Tuesday night as they reckoned with an attack more sophisticated and worrisome than any seen here in years.
The prospect of a wider plot, May said, was “a possibility we cannot ignore.”
The killing of 22 people — many of them teens — following a concert in this northern English city by American pop star Ariana Grande was claimed on Tuesday by the Islamic State, which said one of its “soldiers” was responsible.
Even as officials and experts cast doubt on the terrorist group’s assertion, however, authorities were scrambling to execute searches, arrest potential accomplices and reinforce security systems at a spectrum of public events that look newly vulnerable to attacks like Monday’s.
After years of successfully fending off more-sophisticated strikes even as countries across continental Europe have fallen victim to bombings, Monday night’s carnage underscored that Britain is not immune amid a rising tide of extremist violence.
The highest priority for police, said Greater Manchester Chief Constable Ian Hopkins, was to “establish whether (Abedi) was acting alone or as part of a network.”
Earlier he had said that Abedi executed the bombing alone and that he “was carrying an improvised explosive device, which he detonated, causing this atrocity.”
But unlike in previous high-profile attacks — including one in March in which an assailant driving a speeding car ran down pedestrians on a London bridge, then stabbed to death a British police officer — experts said it was unlikely that Monday’s attack had been carried out without help.
“Getting a car or a knife is easy,” said Raffaello Pantucci, a terrorism expert at the London-based Royal United Services Institute. “Making a bomb that works and goes off when you want it to go off takes preparation and practice. And it usually involves other people.”
Pantucci said British authorities “are going to try to figure out who (Abedi) knows, who he’s linked to. Did he build the bomb itself, or did someone build it and give it to him?”
If police have an answer, they did not say so publicly on Tuesday. But there was ample evidence of a widening security operation, with the arrest of a 23-year-old from south Manchester in connection with the bombing. Police also carried out searches at two homes, including the house in the leafy suburban neighborhood where Abedi’s was registered as having lived.
A senior European intelligence official said the attacker was a British citizen of Libyan descent. The official, who was not authorized to speak on the record and thus spoke on the condition of anonymity, said the suspect’s brother has been taken into custody.
A family friend said Abedi traveled frequently between Libya and Britain. “We have an ISIS problem in Libya. We wonder whether he met people there who trained him,” said the friend, who spoke on the condition of anonymity. ISIS is another name for the Islamic State.
Even before May’s announcement of a “critical” threat level for just the third time ever — the first two came in 2006 and 2007 — authorities from London to Scotland said that they would be reviewing security plans for upcoming public events. Even smaller gatherings that would not have been policed in the past may now get protection, they said.
“Over the coming days as you go to a music venue, go shopping, travel to work or head off to the fantastic sporting events, you will see more officers, including armed officers,” said Commander Jane Connors of London’s Metropolitan Police Department.
May’s decision to deploy the military means the public may now see soldiers rather than police. May said the military would operate under police command.
The escalation came as the nation grieved for the young victims, with thousands of people converging on Manchester’s graceful Albert Square for a vigil that was part solemn remembrance and part rally against extremism.
To roaring applause, Manchester Mayor Andy Burnham vowed that the city — which has seen hardship, having been bombed relentlessly during World War II — would not succumb to division or anger. A poet named Tony Walsh delivered an ode to the city titled This Is the Place. And in what has become a dark mainstay of life in Western Europe, passersby left candles, flowers and cards for the dead.
The casualties included children as young as elementary school students. Police said that among the 59 people injured, a dozen were younger than 16.
Among the dead was Saffie Rose Roussos, who was just 8 years old. The first victim to be publicly identified was Georgina Callander, an 18-year-old student.
Other names were expected to be released today, with authorities bracing the public for deaths among the teens and tweens who form the core of Grande’s enthusiastic fan base.
The Islamic State did not give any details about the attacker or how the blast was carried out, raising doubts about the truth of its claim. Its statement was posted on the online messaging service Telegram and later noted by the SITE Intelligence Group, which monitors militant websites.
The Islamic State often quickly proclaims links to attacks, but some previous boasts have not been proved.
During a visit to the West Bank city of Bethlehem, President Donald Trump pledged “absolute solidarity” with Britain and called those responsible for the attack “evil losers in life.”
The Monday night attack was the worst terrorist strike on British soil since 2005, when Islamist extremists bombed the London subway and a bus, killing 54 people.