We will bring you further updates on this story as they happen in the coming days.
Until then, here is a reminder of what we know so far:
- A 14-year-old boy was killed in a sword attack in Hainault, northeast London, at around 7am;
- A 36-year-old man has been arrested on suspicion of murder;
- The suspect is in hospital, having suffered injuries when his van was driven into a building, police say;
- The Met Police was initially called to reports of a vehicle being driven into a house;
- The suspect was carrying a sword and officers tasered and arrested him, 22 minutes after the first call;
- The man was seen shouting "Is there anybody here who believes in God?";
- Two officers suffered wounds requiring surgery, while two members of the public were injured. Some of those injured have knife wounds;
- Police don't believe the attack was targeted or terror-related;
- A witness who says he saw the attack said he can't stop envisioning the boy's face.