Police were called by LAS at 06:45am on Tuesday, 18 April to Leyton E10 following reports of a stabbing.
Officers attended and found a male, aged in his teens, in a cafe in the High Road. It’s thought he may have been attacked in Brisbane Road.
The victim has been taken to the hospital; his injuries are not life-threatening.
The male has been arrested on suspicion of assault of an emergency worker.
Further enquiries are ongoing.
A number of crime scenes are in place.
Anyone with information that could help police should call 101 ref CAD 2972/18 Apr.