A worker at a shop in Angel was stabbed this morning.
Emergency services attended the shop in Chapel Market, Angel, and found a male member of staff with knife injuries.
He was taken to an east London hospital shortly after 10.42am, where he remains with not life-threatening injuries.
The Met Police says initial enquiries show a male rode a bike into the shop, approached the worker and stabbed him.
The force has not confirmed which shop the worker was attacked in.
Officers searched the area and four juvenile males were arrested on suspicion of grievous bodily harm (GBH) with intent.
One of the youths were also arrested on suspicion of possessing an offensive weapon.
They were taken to north London police stations where they remain at this time.
Enquires into the incident continue and a crime scene remains in the area.
Anyone who witnessed this incident but has not yet spoken with police is asked to call 101 or tweet @MetCC quoting 2838/15JUN.
Alternatively contact Crimestoppers anonymously on 0800 555 111.
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