A man has been arrested after four people including a two-year-old boy were shot in north-west London.
The group, which included the child’s mother and two men in their late teens, were attacked in Energen Close, Harlesden, on Wednesday evening.
They were all taken to hospital where the boy is in a serious but stable condition.
A 19-year-old man has been held on suspicion of murder and remains in custody, the Met said.
The force added the arrest had taken place after officers “executed warrants at two addresses in North London” at 05:00 BST.
The condition of the three other adults are not life-threatening or life-changing.