Residents and business owners are today counting the cost of yesterday's flooding in Herne Hill. Around 36 properties were left under water when a mains pipe burst at around 5 o'clock in the morning. Ria Chatterjee has been back to speak to locals who are surveying the damage.
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The 24-year-old was unarmed and the incident is not being treated as terror-related.
Some platforms have been taken out of service with disruption expected to continue until the end of the day.
The Met Office has extended its weather warnings for snow and ice to cover vast swathes of the country, including London and the South East.