Police officers were challenged by a group of men as they attempted to arrest a 14-year-old boy on suspicion of possessing cannabis, according to Scotland Yard.
The men reportedly “obstructed a police vehicle from leaving the scene”.
The incident took place in Grahame Park, near RAF Hendon at around 2.40pm.
Shortly before 9pm the teenager was released from custody under investigation with his mother present.
Backup units were deployed at the scene and arrested two men, aged 23 and 25.
More to follow…