Three men remain in custody in connection with a suspected drive-by shooting on London's Waterloo Bridge.
A black Ford Focus is thought to have been shot at while travelling on the bridge by someone on a motorcycle at about 8pm last night.
A 22-year-old man was taken to an east London hospital with head injuries but has since been discharged.
Police arrested three young men believed to be aged 22, 23 and 24 on suspicion of firearms offences.
They are being questioned at various police stations while Scotland Yard's Trident gang unit investigates.
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