Transcript for London mayor to attackers: 'You do not commit these disgusting acts in my name'

London stands in defiance. The case this cowardly attack and out city. Now people. Out volumes. It's way of life. The man of London. I'll send a clear message. To the sick. Evil extremists. Who commits these hideous crimes. We will. Defeat you. Users will not win. As late proud. And take she'll seek British mostly. I say this. You do not commit these disgusting acts eighty mine detonated. You'll love ideology. Has nothing. To do with the true values of Islam. And you rule. Succeed in dividing owl city. Today we mourn the loss of innocent lives. Long that is. And people from around the world. We send follow the victims' families. And to all those who were injured. And we find out courageous and emergency services. And that braverman that is who risked their lives to care Brothers. You are. I'll Citi. Is filled with a great sorrow. And anger tonight. But also great resolve and determination. Because. I'll unity love for one another. Will always. Be stronger in the case of the extremist. This is out six CDs. I'll values and this is our way of life. Long. Would never be broken by terrorism. We will step up the fight the case extremism. And we will defeat the terrorists thank you.

This transcript has been automatically generated and may not be 100% accurate.