[Ana Cabrera, Cnn Anchor:] Most of the 11 people arrested so far following this terror incident are women. London police say they have been raiding apartments in the barking section of the city looking for people who know the attackers and who may have helped them in their deadly rampage. Witnesses say three men drove this van across busy London Bridge, plowing into people, aiming for them, trying to kill them. After crashing the van, the men then set out on foot with knives stabbing and slashing more people before London police shot all three of them dead. The entire horrible incident lasted just 15 minutes. Let's go live to London right now. CNN international diplomatic editor Nic Robertson is there and CNN senior national correspondent Alex Marquardt. Nic, I just mentioned ISIS has claimed responsibility for this attack. How are they making that claim and what role are they saying they played?
[Nic Robertson, Cnn International Diplomatic Editor:] Well, they're making it on a Web site they used before but they put no they put forward no sort of details on how they could make this claim credible. There's nothing there that makes the claim credible whatsoever. They haven't mentioned the names, they haven't put their faces up. They haven't put statements forward from these people. So at the moment you have to look at this claim by ISIS and put it to one side and wait for the police investigation to run its course. The police say that this investigation is moving with speed, that they believe that they are able to identify these three attackers. Indeed they've been to four premises, raided four premises in the east of London today. They've arrested 12 people. Of those 12 one has been released. Significantly seven of them were women. But if you look at the ages of the people who are arrested and the police have released those ages, there were six people there, three male, three female, in their mid to late 50s, one of them was 60. And what we've seen before after attacks like this is the police raid the premises where the attackers were most recently living, close friends and associates. It appears to be that's what they may have done this time as well Ana.
[Cabrera:] And they're still not releasing the identity or any information about those attackers, as you mentioned, Nic. Now this is the third terror attack in the United Kingdom in three months. What is the response from the Theresa May government?
[Robertson:] Theresa May says this is a new type of terrorism. We have to combat it in a new way. She said there are four ways to do that. We must we have difficult conversations in communities where she said extremism is tolerated. She wants to see, you know, increased military strikes on the areas that ISIS operates in the world, Iraq and Syria. She wants to close down the Internet space, she calls it, where ISIS is able to recruit people. She wants to put international pressure on Internet service providers, social media companies she said should be should work harder to prevent extremist groups, propagating their propaganda on their sites. And the other thing that she said, and this is something that will resonate with her base here in Britain is she wants potentially to have stronger legislation for the police and the intelligence services because she says this terror threat has changed. And therefore the way that Britain needs to tackle it must change. And that could mean tougher legislation.
[Cabrera:] Nic Robertson in London for us. Thank you. There was chaos, there was confusion all around London especially on London Bridge last night during these attacks. One man talked earlier with our Becky Anderson about what he saw when he came upon the scene just shortly after the violence began.
[Tyson Oladokun, Eyewitness:] As I drove closer towards the incident I saw a man lying on the floor. He was cradled by another man and had blood on his chest. At first it looked like a bicycle accident or motor accident. But as I moved closer towards him I could tell that the blood was concentrated in his chest area. So it looked like he had been stabbed. I saw another person lying down next to him. And they had covered his head with a blanket. But it looked like this guy may have died. We were stuck there for around 30 minutes or so. We weren't moving. There was a lot of commotion. People were going crazy. The police seemed relatively calm at the time. It was only subsequently I saw quite a lot of police. And they were chasing people across the bridge. This was normal civilians, normal pedestrians, over the bridge and screaming at them to run, run, run for your lives, terror.
[Cabrera:] 48 people were wounded in these attacks, 36 remain in the hospital including 21 people in critical condition. CNN's senior international correspondent Alexander Marquardt is near London Bridge. Alexander, what are you now learning about the victims?
[Alexander Marquardt, Cnn Senior International Correspondent:] Ana, that's right. Most of the people who were wounded last night are still in the hospital. As you mentioned, 21 in critical condition, which means that the death toll which now stands at seven could potentially still rise. Now we're not being told too much about the identities of those who are still in the hospital, of the wounded. But we are starting to hear some of their stories including one about a British transportation police officer who according to his boss, the chief constable, stood down and went after the attackers with just his baton. He had been on the job for just two years an tonight is being commended for his courage. CNN also spoke with the mother of one of the wounded, Elizabeth O'Neill, who said that her son Daniel is struggling with what happened last night. Take a listen.
[Elizabeth O'neill, Mother Of Victim:] He only stepped outside the pub for a second. And a man ran up to him and said, this is for my family, for Islam. Looked him straight in the face and stabbed him. Daniel pulled back. Then he went into the pub. He wasn't really aware he had been stabbed. Then there were shouts for everybody to get down on the floor. And then they had to go downstairs into the pub. And his friends had a tourniquet on him. And they were holding pressure. Brought him downstairs. Parts of it he doesn't remember. When the police came, two police officers had him in the back of the car. If it wasn't for his friends' quick action and for the police who have been absolutely fantastic and I thank God to them all night Daniel I don't think Daniel would be here.
[Marquardt:] Elizabeth O'Neill also telling CNN that Daniel is suffering from survivor's guilt. For her part, Elizabeth would like to meet the police officers who saved her son to thank them Ana.
[Cabrera:] So moving. Alex Marquardt, thank you. A few numbers I want to bring to you from this latest terror incident in the United Kingdom. Three attackers they are all dead. Seven innocent people just walking on London Bridge or spending a Saturday night at a restaurant, they're also dead. Dozens of people are hurt, many of them critically. And 11 people are now in custody. Police in London are working to figure out their connection to the attackers and if they played any part in the terror. CNN law enforcement and former Secret Service agent Jonathan Wackrow is here with us. Also our national security analyst, Juliette Kayyem. Jonathan, in a place like London.
[Jonathan Wackrow, Cnn Law Enforcement Analyst:] Yes.
[Cabrera:] On a Saturday night, it's a beautiful evening. People are not ever going to be thinking that something like this could happen.
[Wackrow:] Yes.
[Cabrera:] And it comes at a time where they're using a van and knives. How on earth do you stop that from happening?
[Wackrow:] Well, listen, these are very dynamic situations. Law enforcement is, you know, looking and searching for a way to respond to this changing face and changing tactics of terrorism. If I couldn't look back at the last six months we're seeing vehicles being weaponized. We're seeing knives being utilized to cause terror. Again this is the, you know, third attack we've seen in, you know, Great Britain.
[Cabrera:] In Great Britain.
[Wackrow:] Exactly. One location. But throughout Europe. I mean, look at what happened in Nice, the truck attack there. Now look at the people that they have in custody, mostly women. So the face of terrorism is changing. The tactics are changing. Law enforcement needs to have the tools and the intelligence to counter that.
[Cabrera:] Juliette, these attackers killed seven people. Again they rented a truck. They used some knives. You can buy at any store. If ISIS is indeed to blame for this they've claimed responsibility. There's no proof that they are behind it but does it say something about the state of that group that they've gone low tech with this attack.
[Juliette Kayyem, Cnn National Security Analyst:] Well, I think they've gone all tech at this stage. I think that if you put, you know, a lot of attacks going on during Ramadan not just in the west but of course in Iraq and elsewhere you're seeing high tech, low tech, easy, coordinated, you know, lone wolf. I mean, it really is all of the above unfortunately. And what that means is of course from the perspective of law enforcement and public safety you don't exactly know what is the exact threat you're looking for. So in London was as we were saying last night, you know, it was you know, it was orchestrated amongst three men but all they had to do was buy a car and get some knives. So that's sort of coordinated but it's not lone wolf. And so I think that's the challenge right now is that it is sort of all of the above and that means that you're going to have to minimize the risk in these big public spaces. Know that you cannot make soft targets hard, otherwise you won't be able to go out and live our lives. And then also as we've been talking about is really focus on the response capabilities of police officers, ambulances, public health to protect those who might be in harm's way.
[Cabrera:] Jonathan, the response of police law enforcement has been widely praised in this incident. But you know what it's like to mitigate risk.
[Wackrow:] Absolutely.
[Cabrera:] The main focus now is how do you prevent something like this? And obviously for these individuals they were able to do what they did in the preparation under the radar. Anybody can rent a truck, anybody can purchase some knives.
[Wackrow:] Well, when you start looking at all these incidents, law enforcement, you know, on their heels. They're being reactive to situations. They have to become more proactive. They have to you know, through different legislation have more intelligence gathering capabilities to get ahead of these of these identified threats. Listen, we know that the tactics are changing. Last six months have proven that. Law enforcement needs every single pathway available, every single resource available to them to identify these vulnerabilities and then develop mitigation plans. You know, protection of soft targets, how do we do it. Just a week or two ago in Times Square we saw a car ram into the sidewalk. It was not terrorism-related but again it speaks to protecting soft targets and allowing police and emergency responders to have every resource available to respond to these dynamic and, you know, quickly changing situations.
[Cabrera:] And we talk about resources, Theresa May, the British prime minister, laid out some potential solutions in her mind. She says, you know, we need to work together to regulate cyber space. She also even talked about Britain potentially changing some of the laws to be able to more aggressively go after these attackers including potentially longer detention for terror suspects. Juliette, do you think those types of things would be effective?
[Kayyem:] It simply depends. You know, obviously, I just have to say that you need to use every you know, give law enforcement every available resource, it doesn't work that way. I mean, in these constitutional democracies, one of the reasons why law enforcement doesn't have all the tools that they would necessarily want is because people have an expectation to privacy or right to assembly. And I think so part of the challenge is figuring out at what stage, right, do you want to give government the authorities and what kind of review do you want and how
[Cabrera:] All right. Got to leave it there. Juliette Kayyem and Jonathan Wackrow, I was determined to get your name right.
[Wackrow:] Thank you, Ana.
[Cabrera:] Thank you both for being with us. Now despite the horrible attack in central London there has been this beautiful benefit concert for the people affected by the other attack that happened in England at the Ariana Grande concert just couple of weeks ago. This concert went on and we'll be live in Manchester with the highlights next. You're live in the CNN NEWSROOM.