The Queen made the short journey from Buckingham Palace to visit the Duke and Duchess of Cambridge after the birth of their son yesterday. The visit comes before she heads to Balmoral in Scotland for her traditional summer break on Friday.
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Scotland Yard said two murder investigations have been launched following the separate incidents, which both happened in the past week.
Photos show the extraordinary surgical procedures to remove the growth.
The Met Police says 143 firearms have been handed in at stations across the capital in just seven days, including two antique machine guns.