This scooter driver had two early morning shocks - one having an accident on his way to work in Southwark, the other being helped off the road by London Mayor Boris Johnson.
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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.