Police have arrested a third suspected after a man in his thirties was found stabbed in the back in Poplar on Friday night. The victim later died in hospital. Yesterday two men were arrested. All three men remain in police custody. A post mortem will be carried out later today.
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Muslim leaders condemned the "heinous and appalling" Westminster terror attack.
Travis Frain is recovering in hospital and has posted a photo to Twitter of Prince Charles by his bedside.
Acting Commissioner Craig Mackey led new policemen and women in paying their respects at a passing-out parade in Hendon, north-west London.