London attackWhat we know so far

— Seven people have been killed and forty-eight injured – twenty-one of them critically — during attacks in two closely connected areas of London on Saturday night.

— Police were called after a white rental van ploughed into pedestrians on London Bridge at about 9.58 p.m. on Saturday night. The van continued on to nearby Borough Market where three attackers emerged and carried out multiple stabbings in pubs and restaurants in the area.

— Armed police arrived the first police officers arrived and shot the three attackers dead within eight minutes of being called. The attackers wielded knives, and appeared to be wearing suicide vests, which proved to be not real suicide vests.

— The Canadian government said that a Canadian citizen was among those killed.

— The French Foreign Ministry said one French citizen was killed, seven injured – of which four are in critical condition – and one French national is still unaccounted for.

— Eight armed police officers fired an estimated fifty rounds in the incident, which is high by U.K. police standards. One bystander was hit in the head by a police bullet, but a doctor at the Royal London hospital the man was expected to make a full recovery.

— While the police was on their way, a British Transport police officer, armed only with his baton, tackled the three terrorists and was stabbed in the face. He suffered serious injuries, but is in a stable condition. An off-duty Metropolitan police officer, and two on-duty police officers, were among those injured.

— Two Australian citizens have been injured, as was a New Zealander.

  The police have arrested twelve people after a night operation in Barking in east London. A forensic investigation is under way at that site, as well as in nearby East Ham. One was released Sunday. Those remaining in custody are seven women aged 38, 49, 60, 19, 27, 24, and 53 and four men, two aged 55, and two aged 52 and 27 — all from Barking.

— Speaking outside 10 Downing Street after she had chaired a meeting of the government’s emergency committee, Prime Minister Theresa May called the ideology animating the attackers a “perversion of Islam,” saying there was “a new trend in the threat we face” with terrorism breeding terrorism. “It is time to say enough is enough,” she added.

— The prime minister said there must be changes on four fronts: first, people who are drawn to Islamist extremism must be persuaded that Western values are superior. Second, there must be a clampdown on the “safe spaces” on the internet where terrorism breeds. Third, she called for action at home where extremism may be tolerated. “There is – to be frank – far too much tolerance of extremism in our country,” she said. Finally, she proposed a review of counterterrorism strategy and laws, and suggested longer sentences for some offenses. She confirmed that the general election will go ahead on Thursday as planned.

— Cressida Dick, the Met police commissioner, said police officers had conducted a thorough search of the area where the attack took place.

— The Metropolitan police assistant commissioner, Mark Rowley, said there will be “increased physical measures” on London’s bridges.

— The Joint Terrorism Analysis Center (JTAC) at MI5 headquarters has recommended not to raise the official threat level from severe to critical, suggesting that they believe no more terrorists are at large.

— The United Kingdom will observe a minute’s silence on Tuesday 6 June at 11 a.m. in remembrance of those who have lost their lives and those affected by the attacks. Flags will remain at half-mast on Whitehall government buildings until Tuesday evening.

— The Home Office has set up a website with information about the support available for people affected by the attacks.

— Pictures have been circulating showing a suspect on the ground in the market; he appears to have canisters strapped to his body. Police say those canisters were part of a fake suicide vest. The use of fake bomb vests was designed to “spread panic and fear”, the prime minister said.

— Authorities responded to a third incident, a stabbing at Vauxhall, but this was not connected to the events around London Bridge.

— The London mayor, Sadiq Khan, condemned the “barbaric” and “horrific” attack as “deliberate and cowardly.” He said there would be a heavy police presence throughout central London on Sunday.