Transcript for London Underground terror attack leaves 30 injured
there is breaking news on the terror attack in London. A subway explosion that left 30 injured. A second arrest overnight. A 21 yeel man in London. Op top of the teenager also in custody. Yis Chris claimed responsibility for the take. Britain on the highest state of alert. Braced for more. The major warning the public to remain vigilant. The attack at H height of rush hour Friday morning. Just after I landed in London for my interview with prime minister Theresa may. We reported on "Gma." Speaking with two eyewitnesses. Just a few hours later, I arrived at 10 doing street for my conversation with the prime minister. She joined us in Winston Churchill's bedroom after a sere is of briefs and also tweets
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