Delays of up to 40 minutes on Southern between Victoria and Three Bridges due to earlier broken down tram at Clapham Junction and safety checks being made at Wandsworth Common.
All Southern and Gatwick Express trains in/out of Victoria are disrupted until around 9pm. Tickets accepted on London Underground, Southeastern, South West Trains, First Capital Connect, London Midland and London Bus services.
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The 22 year old man is seriously injured in hospital. Police believe a baseball bat and iron bar may have been used in the attack