One man was kept by police following the episode, the Metropolitan Police Department said in an announcement. He has not been formally captured. BBC News reports no less than one individual was taken away in an emergency vehicle.
The Natural History Museum said there was “a genuine episode” outside the building.
BBC News reporter Chloe Hayward reports that police say individuals endured minor wounds and are being dealt with in the city:
— Chloe Hayward (@chloefhayward) October 7, 2017