More Arrests as Police Try to "Contain" Network Behind Manchester Suicide Bombing
THERESA MAY, BRITISH PRIME MINISTER: I think it is important that as leaders we have shown our fierce determination to ensure that we use every tool available to us to fight against terrorism and protect our people.</s>WOLF BLITZER, CNN ANCHOR: That was the British prime minister, Theresa May, at the G-7 summit in Sicily. Meanwhile, the U.S. Secretary of State Rex Tillerson is in the U.K. today meeting with the British Foreign Secretary Boris Johnson. Both signed a condolences book for the victims of the Manchester attack. Part of Tillerson's visit is aimed at smoothing over some pretty ruffled feathers. The U.K. is angry at the U.S. over leaking investigation details to the U.S. news media.</s>REX TILLERSON, SECRETARY OF STATE: We take full responsibility for that. We obviously regret that that happened. In terms of how to fix the relationship between the U.S. and Great Britain, this special relationship that exists between our two countries will certainly withstand this particular unfortunate event.</s>BLITZER: Meanwhile, new raids and a new arrest. Police in Manchester now have eight people in custody in connection with Monday's terror bombing. Libyan militia says the bomber Salman Abedi spoke with his brother in Libya only 15 minutes before he launched the attack. For more on these developments, let's bring in our senior international correspondents, Fred Pleitgen and Arwa Damon. Fred, you're in London. What are they saying about the investigation?</s>FRED PLEITGEN, CNN SENIOR INTERNATIONAL CORREPONDENT: Wolf, they're saying the investigation is still very much high paced. They've been making progress. You've mentioned some of the arrests. They say that is something they hope will help contain this network that they believe is behind this bombing. However, the big question here, is there still someone at large who is capable of building explosive devices like the one that was used in the Manchester bombing. The authorities hear say they're making progress on that but at this point in time they simply cannot be sure. They say they are working around the clock though. Listen really quick to what the state secretary for security affairs had to say earlier today.</s>BEN WALLACE, U.K. SECURITY MINISTER: We're following up the network and roll it out and try to contain it and get to the bottom of how big it is and how many are involved. We're getting to a stage where we're working it through. As you've seen from the number of arrests we're hopeful ne the right track to contain it and make sure that people that pose a further risk are being picked up and we're making sure that we can hopefully get back to normal.</s>PLEITGEN: But at this point in time they're not even close to getting back to normal. The threat level here is still at critical which is the highest that country has. You still have soldiers on the street in London who are guarding key installations. A lot more armed police as well. As the authorities are trying to sift through that network and has the minister there said, trying to contain the network and through these arrests really trying to get more and more of those people off the street and stop them from being a danger to the public here in the U.K., Wolf.</s>BLITZER: Arwa, what can you tell us about the conversation between the suicide bomber Salman Abedi and his brother and the father role in all of this as well?</s>ARWA DAMON, CNN SENIOR INTERNATIONAL CORRESPONDENT: At this stage the most recent information we're gets suggest from the spokesman for the special deterrent force. This is the armed group that actually detained Salman's brother as well as his father. And it's basically an armed group that nominally falls under the control of the ministry of interior. According to the spokesman, he says that Salman and his brother spoke about 15 minutes before the attack took place. He says that the brother only really knew about his brother's movements. He knew he was planning on not going to the religious pi-- as he told his father knew that he was going to Manchester, knew that he was planning some sort of attack but he did not know when or where it was going to be happening. It is believed at least by the Libyans that both brothers were somehow involved in plotting this attack. They do believe that plans for it began as far back as the end of 2016. Libyans are saying there wasn't a lot of plotting or planning trying to put together the device that took place while the two brothers were in Libya. At this stage, they're trying to piece all of this together. The brother's father also detained at this stage. We don't know what he is being accused of, what he's being investigated are. Remember he yanked both brothers from Manchester, brought them back to Libya about a month before the attack took place because he was concerned they were getting wrapped up in some sort of criminal gang activity. The boys' mother as well as two other siblings were also taken in for questioning, but they were released shortly thereafter. So still a lot of effort under way at this stage trying to piece together exactly where it was that these two brothers were radicalized. Remember the brother who was detained according to the Libyans at least under interrogation and we do not know exactly what those circumstances were. Did confess that he and Salman were members of ISIS. But exactly where they joined the organization, were they became somehow radicalized in Manchester? Did it happen in one of their trips back and forth? Those are going to be key points in trying to determine how it is that two brothers, it would seem who were born and raised in the U.K., who were both on their way to getting an education and not exactly from an impoverished family, ended up being drawn into this violence.</s>BLITZER: Arwa Damon and Fred Pleitgen both doing excellent reporting on these investigations. Thanks very much. All of the victims, by the way, in the Manchester terror attack have now been identified. A family friend says 15-year-old Megan Hurley was killed in the blast. She's just one of 22 victims that were killed during that suicide bombing attack this week. We'll be right back.