Son, 4, of Irish national stabbed to death by woman in London

Forensic officers at a property on Montague Road, east London, where a four-year-old boy suffered fatal knife injuries (Yui Mok/PA Wire)

A four-year-old boy stabbed to death by a woman in east London is understood to be the son of an Irish national with close ties to the south-east.

Police were called to an address in Montague Road, Hackney, on Wednesday night following concerns about the welfare of a child.