An investigation has been launched in Sunderland following the death of an 11-month-old baby girl yesterday.
Northumbria Police has confirmed that it received a report of concern for a child after a baby girl was taken to hospital by her parents on Monday.
The child, who is from Sunderland, was unresponsive and remained in hospital in a critical condition until she passed away last night.
A full investigation is ongoing to establish exactly what has happened, and the death is currently being treated as unexplained.
The Echo understands that the baby's family live in Croft Avenue, off the city's Chester Road.
One 35-year-old mum, who lives in the terrace avenue, said she was shocked to discover why police had been in the street as the week began.
Residents say they saw a marked vehicle at the end of the street at Chester Road West from Monday until around Wednesday.
"The police van was there for a few days, but we didn't see anyone coming or going," she said.
"It's sad to hear why."
Three people have been assisting police with inquiries and officers have been supporting the child's family during the investigation.
Anyone who does have information about the child, or thinks they have information that may be useful to police, can contact officers on 101 quoting log 1185 23/10/17.