Four men were injured after a stabbing outside a Barking nightclub.
Police were called at 3.45am on Sunday to reports of a stabbing in London Road.
They found three men suffering from stab injuries and a fourth had an head injury.
All were taken to hospital.
None of the injuries are thought to be life-threatening.
Four men – two aged 30 and two aged 25 – have been arrested on suspicion of assault.
Officers from the East Area Command Unit are investigating and enquiries are ongoing.
Anyone who witnessed the incident should call the command unit on 101 quoting CAD1325/12AUG, tweet @MetCC, or call Crimestoppers anonymously on 0800 555 111.
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