OTTAWA — Prime Minister Justin Trudeau says Canadians "are shocked by the news of the horrific attack in Manchester." Canadians are shocked by the news of the horrific attack in Manchester tonight. Please keep the victims & their families in your … . MANCHESTER, England (KDKA/AP) — An explosion struck an Ariana Grande concert attended by thousands of young music fans in northern England late Monday, killing at least 22 people and injuring dozens in what police were treating as a terrorist attack. . London: A suicide bomber has killed at least 22 and injured scores more, in an attack on a Manchester concert of US artist Ariana Grande packed with thousands of young people. There are children among the dead, police confirmed on Tuesday morning. . 22 killed, at least 59 injured after blasts at end of Ariana Grande teen concert in Manchester. Attack conducted by one man, who was carrying a device which he detonated. Most victims believed to be teens; video shows panicked young fans fleeing venue …