Britain's Prime Minister Theresa May leaves after delivering a statement at 10 Downing Street in central London on May 23, 2017 after an emergency meeting of the Cobra committee in response to a deadly suspected suicide bombing in the northern city of Manchester. Children were among 22 people killed and dozens injured in a suspected suicide bombing at a pop concert by US star Ariana Grande, in Britain's deadliest terror attack in 12 years. / AFP PHOTO / Daniel LEAL-OLIVAS