Detectives from the Homicide and Serious Crime Command were pictured this morning investigating the scene in Edmonton, north London, where a 19-year-old man died after reports of gunshots.
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Ursula Keogh, 11, went missing on Monday around 3.30pm. She was dressed in her school uniform.
"My sincerest apologies to everyone who purchased tickets and were planning to come to the upcoming shows."
His comments at the Defence and Security Forum on Monday came after a £20 billion black hole in the budget for the next decade emerged.