Four-year-old boy dies after suffering knife injuries in east London

Met says a 41-year-old woman has been arrested on suspicion of murder after incident in Hackney

A four-year-old boy has died after suffering knife injuries at an address in Hackney, east London, the Metropolitan police have said.

A murder investigation has been launched and a 41-year-old woman has been arrested on suspicion of murder, the force said.